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    66. 

  66. <a href="#func-members">Functions</a>  </div>
    67. 

  67.   <div class="headertitle">
    68. 

  68. <div class="title">GLM_GTC_constants<div class="ingroups"><a class="el" href="a00904.html">Recommended extensions</a></div></div>  </div>
    69. 

  69. </div><!--header-->
    70. 

  70. <div class="contents">
    71. 

  71. <table class="memberdecls">
    72. 

  72. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
    73. 

  73. Functions</h2></td></tr>
    74. 

  74. <tr class="memitem:ga4b7956eb6e2fbedfc7cf2e46e85c5139"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    75. 

  75. <tr class="memitem:ga4b7956eb6e2fbedfc7cf2e46e85c5139"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga4b7956eb6e2fbedfc7cf2e46e85c5139">e</a> ()</td></tr>
    76. 

  76. <tr class="memdesc:ga4b7956eb6e2fbedfc7cf2e46e85c5139"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return e constant.  <a href="a00908.html#ga4b7956eb6e2fbedfc7cf2e46e85c5139">More...</a><br /></td></tr>
    77. 

  77. <tr class="separator:ga4b7956eb6e2fbedfc7cf2e46e85c5139"><td class="memSeparator" colspan="2">&#160;</td></tr>
    78. 

  78. <tr class="memitem:gad8fe2e6f90bce9d829e9723b649fbd42"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    79. 

  79. <tr class="memitem:gad8fe2e6f90bce9d829e9723b649fbd42"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#gad8fe2e6f90bce9d829e9723b649fbd42">euler</a> ()</td></tr>
    80. 

  80. <tr class="memdesc:gad8fe2e6f90bce9d829e9723b649fbd42"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return Euler's constant.  <a href="a00908.html#gad8fe2e6f90bce9d829e9723b649fbd42">More...</a><br /></td></tr>
    81. 

  81. <tr class="separator:gad8fe2e6f90bce9d829e9723b649fbd42"><td class="memSeparator" colspan="2">&#160;</td></tr>
    82. 

  82. <tr class="memitem:ga753950e5140e4ea6a88e4a18ba61dc09"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    83. 

  83. <tr class="memitem:ga753950e5140e4ea6a88e4a18ba61dc09"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga753950e5140e4ea6a88e4a18ba61dc09">four_over_pi</a> ()</td></tr>
    84. 

  84. <tr class="memdesc:ga753950e5140e4ea6a88e4a18ba61dc09"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 4 / pi.  <a href="a00908.html#ga753950e5140e4ea6a88e4a18ba61dc09">More...</a><br /></td></tr>
    85. 

  85. <tr class="separator:ga753950e5140e4ea6a88e4a18ba61dc09"><td class="memSeparator" colspan="2">&#160;</td></tr>
    86. 

  86. <tr class="memitem:ga748cf8642830657c5b7eae04d0a80899"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    87. 

  87. <tr class="memitem:ga748cf8642830657c5b7eae04d0a80899"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga748cf8642830657c5b7eae04d0a80899">golden_ratio</a> ()</td></tr>
    88. 

  88. <tr class="memdesc:ga748cf8642830657c5b7eae04d0a80899"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the golden ratio constant.  <a href="a00908.html#ga748cf8642830657c5b7eae04d0a80899">More...</a><br /></td></tr>
    89. 

  89. <tr class="separator:ga748cf8642830657c5b7eae04d0a80899"><td class="memSeparator" colspan="2">&#160;</td></tr>
    90. 

  90. <tr class="memitem:ga0c36b41d462e45641faf7d7938948bac"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    91. 

  91. <tr class="memitem:ga0c36b41d462e45641faf7d7938948bac"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga0c36b41d462e45641faf7d7938948bac">half_pi</a> ()</td></tr>
    92. 

  92. <tr class="memdesc:ga0c36b41d462e45641faf7d7938948bac"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return pi / 2.  <a href="a00908.html#ga0c36b41d462e45641faf7d7938948bac">More...</a><br /></td></tr>
    93. 

  93. <tr class="separator:ga0c36b41d462e45641faf7d7938948bac"><td class="memSeparator" colspan="2">&#160;</td></tr>
    94. 

  94. <tr class="memitem:gaca94292c839ed31a405ab7a81ae7e850"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    95. 

  95. <tr class="memitem:gaca94292c839ed31a405ab7a81ae7e850"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#gaca94292c839ed31a405ab7a81ae7e850">ln_ln_two</a> ()</td></tr>
    96. 

  96. <tr class="memdesc:gaca94292c839ed31a405ab7a81ae7e850"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return ln(ln(2)).  <a href="a00908.html#gaca94292c839ed31a405ab7a81ae7e850">More...</a><br /></td></tr>
    97. 

  97. <tr class="separator:gaca94292c839ed31a405ab7a81ae7e850"><td class="memSeparator" colspan="2">&#160;</td></tr>
    98. 

  98. <tr class="memitem:gaf97ebc6c059ffd788e6c4946f71ef66c"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    99. 

  99. <tr class="memitem:gaf97ebc6c059ffd788e6c4946f71ef66c"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#gaf97ebc6c059ffd788e6c4946f71ef66c">ln_ten</a> ()</td></tr>
    100. 

  100. <tr class="memdesc:gaf97ebc6c059ffd788e6c4946f71ef66c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return ln(10).  <a href="a00908.html#gaf97ebc6c059ffd788e6c4946f71ef66c">More...</a><br /></td></tr>
    101. 

  101. <tr class="separator:gaf97ebc6c059ffd788e6c4946f71ef66c"><td class="memSeparator" colspan="2">&#160;</td></tr>
    102. 

  102. <tr class="memitem:ga24f4d27765678116f41a2f336ab7975c"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    103. 

  103. <tr class="memitem:ga24f4d27765678116f41a2f336ab7975c"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga24f4d27765678116f41a2f336ab7975c">ln_two</a> ()</td></tr>
    104. 

  104. <tr class="memdesc:ga24f4d27765678116f41a2f336ab7975c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return ln(2).  <a href="a00908.html#ga24f4d27765678116f41a2f336ab7975c">More...</a><br /></td></tr>
    105. 

  105. <tr class="separator:ga24f4d27765678116f41a2f336ab7975c"><td class="memSeparator" colspan="2">&#160;</td></tr>
    106. 

  106. <tr class="memitem:ga39c2fb227631ca25894326529bdd1ee5"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    107. 

  107. <tr class="memitem:ga39c2fb227631ca25894326529bdd1ee5"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga39c2fb227631ca25894326529bdd1ee5">one</a> ()</td></tr>
    108. 

  108. <tr class="memdesc:ga39c2fb227631ca25894326529bdd1ee5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 1.  <a href="a00908.html#ga39c2fb227631ca25894326529bdd1ee5">More...</a><br /></td></tr>
    109. 

  109. <tr class="separator:ga39c2fb227631ca25894326529bdd1ee5"><td class="memSeparator" colspan="2">&#160;</td></tr>
    110. 

  110. <tr class="memitem:ga555150da2b06d23c8738981d5013e0eb"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    111. 

  111. <tr class="memitem:ga555150da2b06d23c8738981d5013e0eb"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga555150da2b06d23c8738981d5013e0eb">one_over_pi</a> ()</td></tr>
    112. 

  112. <tr class="memdesc:ga555150da2b06d23c8738981d5013e0eb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 1 / pi.  <a href="a00908.html#ga555150da2b06d23c8738981d5013e0eb">More...</a><br /></td></tr>
    113. 

  113. <tr class="separator:ga555150da2b06d23c8738981d5013e0eb"><td class="memSeparator" colspan="2">&#160;</td></tr>
    114. 

  114. <tr class="memitem:ga788fa23a0939bac4d1d0205fb4f35818"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    115. 

  115. <tr class="memitem:ga788fa23a0939bac4d1d0205fb4f35818"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga788fa23a0939bac4d1d0205fb4f35818">one_over_root_two</a> ()</td></tr>
    116. 

  116. <tr class="memdesc:ga788fa23a0939bac4d1d0205fb4f35818"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 1 / sqrt(2).  <a href="a00908.html#ga788fa23a0939bac4d1d0205fb4f35818">More...</a><br /></td></tr>
    117. 

  117. <tr class="separator:ga788fa23a0939bac4d1d0205fb4f35818"><td class="memSeparator" colspan="2">&#160;</td></tr>
    118. 

  118. <tr class="memitem:ga7c922b427986cbb2e4c6ac69874eefbc"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    119. 

  119. <tr class="memitem:ga7c922b427986cbb2e4c6ac69874eefbc"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga7c922b427986cbb2e4c6ac69874eefbc">one_over_two_pi</a> ()</td></tr>
    120. 

  120. <tr class="memdesc:ga7c922b427986cbb2e4c6ac69874eefbc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 1 / (pi * 2).  <a href="a00908.html#ga7c922b427986cbb2e4c6ac69874eefbc">More...</a><br /></td></tr>
    121. 

  121. <tr class="separator:ga7c922b427986cbb2e4c6ac69874eefbc"><td class="memSeparator" colspan="2">&#160;</td></tr>
    122. 

  122. <tr class="memitem:ga3c9df42bd73c519a995c43f0f99e77e0"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    123. 

  123. <tr class="memitem:ga3c9df42bd73c519a995c43f0f99e77e0"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga3c9df42bd73c519a995c43f0f99e77e0">quarter_pi</a> ()</td></tr>
    124. 

  124. <tr class="memdesc:ga3c9df42bd73c519a995c43f0f99e77e0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return pi / 4.  <a href="a00908.html#ga3c9df42bd73c519a995c43f0f99e77e0">More...</a><br /></td></tr>
    125. 

  125. <tr class="separator:ga3c9df42bd73c519a995c43f0f99e77e0"><td class="memSeparator" colspan="2">&#160;</td></tr>
    126. 

  126. <tr class="memitem:gae9ebbded75b53d4faeb1e4ef8b3347a2"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    127. 

  127. <tr class="memitem:gae9ebbded75b53d4faeb1e4ef8b3347a2"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#gae9ebbded75b53d4faeb1e4ef8b3347a2">root_five</a> ()</td></tr>
    128. 

  128. <tr class="memdesc:gae9ebbded75b53d4faeb1e4ef8b3347a2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return sqrt(5).  <a href="a00908.html#gae9ebbded75b53d4faeb1e4ef8b3347a2">More...</a><br /></td></tr>
    129. 

  129. <tr class="separator:gae9ebbded75b53d4faeb1e4ef8b3347a2"><td class="memSeparator" colspan="2">&#160;</td></tr>
    130. 

  130. <tr class="memitem:ga4e276cb823cc5e612d4f89ed99c75039"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    131. 

  131. <tr class="memitem:ga4e276cb823cc5e612d4f89ed99c75039"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga4e276cb823cc5e612d4f89ed99c75039">root_half_pi</a> ()</td></tr>
    132. 

  132. <tr class="memdesc:ga4e276cb823cc5e612d4f89ed99c75039"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return sqrt(pi / 2).  <a href="a00908.html#ga4e276cb823cc5e612d4f89ed99c75039">More...</a><br /></td></tr>
    133. 

  133. <tr class="separator:ga4e276cb823cc5e612d4f89ed99c75039"><td class="memSeparator" colspan="2">&#160;</td></tr>
    134. 

  134. <tr class="memitem:ga4129412e96b33707a77c1a07652e23e2"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    135. 

  135. <tr class="memitem:ga4129412e96b33707a77c1a07652e23e2"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga4129412e96b33707a77c1a07652e23e2">root_ln_four</a> ()</td></tr>
    136. 

  136. <tr class="memdesc:ga4129412e96b33707a77c1a07652e23e2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return sqrt(ln(4)).  <a href="a00908.html#ga4129412e96b33707a77c1a07652e23e2">More...</a><br /></td></tr>
    137. 

  137. <tr class="separator:ga4129412e96b33707a77c1a07652e23e2"><td class="memSeparator" colspan="2">&#160;</td></tr>
    138. 

  138. <tr class="memitem:ga261380796b2cd496f68d2cf1d08b8eb9"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    139. 

  139. <tr class="memitem:ga261380796b2cd496f68d2cf1d08b8eb9"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga261380796b2cd496f68d2cf1d08b8eb9">root_pi</a> ()</td></tr>
    140. 

  140. <tr class="memdesc:ga261380796b2cd496f68d2cf1d08b8eb9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return square root of pi.  <a href="a00908.html#ga261380796b2cd496f68d2cf1d08b8eb9">More...</a><br /></td></tr>
    141. 

  141. <tr class="separator:ga261380796b2cd496f68d2cf1d08b8eb9"><td class="memSeparator" colspan="2">&#160;</td></tr>
    142. 

  142. <tr class="memitem:ga4f286be4abe88be1eed7d2a9f6cb193e"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    143. 

  143. <tr class="memitem:ga4f286be4abe88be1eed7d2a9f6cb193e"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga4f286be4abe88be1eed7d2a9f6cb193e">root_three</a> ()</td></tr>
    144. 

  144. <tr class="memdesc:ga4f286be4abe88be1eed7d2a9f6cb193e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return sqrt(3).  <a href="a00908.html#ga4f286be4abe88be1eed7d2a9f6cb193e">More...</a><br /></td></tr>
    145. 

  145. <tr class="separator:ga4f286be4abe88be1eed7d2a9f6cb193e"><td class="memSeparator" colspan="2">&#160;</td></tr>
    146. 

  146. <tr class="memitem:ga74e607d29020f100c0d0dc46ce2ca950"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    147. 

  147. <tr class="memitem:ga74e607d29020f100c0d0dc46ce2ca950"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga74e607d29020f100c0d0dc46ce2ca950">root_two</a> ()</td></tr>
    148. 

  148. <tr class="memdesc:ga74e607d29020f100c0d0dc46ce2ca950"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return sqrt(2).  <a href="a00908.html#ga74e607d29020f100c0d0dc46ce2ca950">More...</a><br /></td></tr>
    149. 

  149. <tr class="separator:ga74e607d29020f100c0d0dc46ce2ca950"><td class="memSeparator" colspan="2">&#160;</td></tr>
    150. 

  150. <tr class="memitem:ga2bcedc575039fe0cd765742f8bbb0bd3"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    151. 

  151. <tr class="memitem:ga2bcedc575039fe0cd765742f8bbb0bd3"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga2bcedc575039fe0cd765742f8bbb0bd3">root_two_pi</a> ()</td></tr>
    152. 

  152. <tr class="memdesc:ga2bcedc575039fe0cd765742f8bbb0bd3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return sqrt(2 * pi).  <a href="a00908.html#ga2bcedc575039fe0cd765742f8bbb0bd3">More...</a><br /></td></tr>
    153. 

  153. <tr class="separator:ga2bcedc575039fe0cd765742f8bbb0bd3"><td class="memSeparator" colspan="2">&#160;</td></tr>
    154. 

  154. <tr class="memitem:gae645d3bb4076df6976b3c0821831b422"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    155. 

  155. <tr class="memitem:gae645d3bb4076df6976b3c0821831b422"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#gae645d3bb4076df6976b3c0821831b422">tau</a> ()</td></tr>
    156. 

  156. <tr class="memdesc:gae645d3bb4076df6976b3c0821831b422"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return unit-circle circumference, or pi * 2.  <a href="a00908.html#gae645d3bb4076df6976b3c0821831b422">More...</a><br /></td></tr>
    157. 

  157. <tr class="separator:gae645d3bb4076df6976b3c0821831b422"><td class="memSeparator" colspan="2">&#160;</td></tr>
    158. 

  158. <tr class="memitem:ga3077c6311010a214b69ddc8214ec13b5"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    159. 

  159. <tr class="memitem:ga3077c6311010a214b69ddc8214ec13b5"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga3077c6311010a214b69ddc8214ec13b5">third</a> ()</td></tr>
    160. 

  160. <tr class="memdesc:ga3077c6311010a214b69ddc8214ec13b5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 1 / 3.  <a href="a00908.html#ga3077c6311010a214b69ddc8214ec13b5">More...</a><br /></td></tr>
    161. 

  161. <tr class="separator:ga3077c6311010a214b69ddc8214ec13b5"><td class="memSeparator" colspan="2">&#160;</td></tr>
    162. 

  162. <tr class="memitem:gae94950df74b0ce382b1fc1d978ef7394"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    163. 

  163. <tr class="memitem:gae94950df74b0ce382b1fc1d978ef7394"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#gae94950df74b0ce382b1fc1d978ef7394">three_over_two_pi</a> ()</td></tr>
    164. 

  164. <tr class="memdesc:gae94950df74b0ce382b1fc1d978ef7394"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return pi / 2 * 3.  <a href="a00908.html#gae94950df74b0ce382b1fc1d978ef7394">More...</a><br /></td></tr>
    165. 

  165. <tr class="separator:gae94950df74b0ce382b1fc1d978ef7394"><td class="memSeparator" colspan="2">&#160;</td></tr>
    166. 

  166. <tr class="memitem:ga74eadc8a211253079683219a3ea0462a"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    167. 

  167. <tr class="memitem:ga74eadc8a211253079683219a3ea0462a"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga74eadc8a211253079683219a3ea0462a">two_over_pi</a> ()</td></tr>
    168. 

  168. <tr class="memdesc:ga74eadc8a211253079683219a3ea0462a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 2 / pi.  <a href="a00908.html#ga74eadc8a211253079683219a3ea0462a">More...</a><br /></td></tr>
    169. 

  169. <tr class="separator:ga74eadc8a211253079683219a3ea0462a"><td class="memSeparator" colspan="2">&#160;</td></tr>
    170. 

  170. <tr class="memitem:ga5827301817640843cf02026a8d493894"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    171. 

  171. <tr class="memitem:ga5827301817640843cf02026a8d493894"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga5827301817640843cf02026a8d493894">two_over_root_pi</a> ()</td></tr>
    172. 

  172. <tr class="memdesc:ga5827301817640843cf02026a8d493894"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 2 / sqrt(pi).  <a href="a00908.html#ga5827301817640843cf02026a8d493894">More...</a><br /></td></tr>
    173. 

  173. <tr class="separator:ga5827301817640843cf02026a8d493894"><td class="memSeparator" colspan="2">&#160;</td></tr>
    174. 

  174. <tr class="memitem:gaa5276a4617566abcfe49286f40e3a256"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    175. 

  175. <tr class="memitem:gaa5276a4617566abcfe49286f40e3a256"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#gaa5276a4617566abcfe49286f40e3a256">two_pi</a> ()</td></tr>
    176. 

  176. <tr class="memdesc:gaa5276a4617566abcfe49286f40e3a256"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return pi * 2.  <a href="a00908.html#gaa5276a4617566abcfe49286f40e3a256">More...</a><br /></td></tr>
    177. 

  177. <tr class="separator:gaa5276a4617566abcfe49286f40e3a256"><td class="memSeparator" colspan="2">&#160;</td></tr>
    178. 

  178. <tr class="memitem:ga9b4d2f4322edcf63a6737b92a29dd1f5"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    179. 

  179. <tr class="memitem:ga9b4d2f4322edcf63a6737b92a29dd1f5"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga9b4d2f4322edcf63a6737b92a29dd1f5">two_thirds</a> ()</td></tr>
    180. 

  180. <tr class="memdesc:ga9b4d2f4322edcf63a6737b92a29dd1f5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 2 / 3.  <a href="a00908.html#ga9b4d2f4322edcf63a6737b92a29dd1f5">More...</a><br /></td></tr>
    181. 

  181. <tr class="separator:ga9b4d2f4322edcf63a6737b92a29dd1f5"><td class="memSeparator" colspan="2">&#160;</td></tr>
    182. 

  182. <tr class="memitem:ga788f5a421fc0f40a1296ebc094cbaa8a"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    183. 

  183. <tr class="memitem:ga788f5a421fc0f40a1296ebc094cbaa8a"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL GLM_CONSTEXPR genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00908.html#ga788f5a421fc0f40a1296ebc094cbaa8a">zero</a> ()</td></tr>
    184. 

  184. <tr class="memdesc:ga788f5a421fc0f40a1296ebc094cbaa8a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 0.  <a href="a00908.html#ga788f5a421fc0f40a1296ebc094cbaa8a">More...</a><br /></td></tr>
    185. 

  185. <tr class="separator:ga788f5a421fc0f40a1296ebc094cbaa8a"><td class="memSeparator" colspan="2">&#160;</td></tr>
    186. 

  186. </table>
    187. 

  187. <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
    188. 

  188. <p>Include &lt;<a class="el" href="a00539.html" title="GLM_GTC_constants">glm/gtc/constants.hpp</a>&gt; to use the features of this extension.</p>
    189. 

  189. <p>Provide a list of constants and precomputed useful values. </p>
    190. 

  190. <h2 class="groupheader">Function Documentation</h2>
    191. 

  191. <a id="ga4b7956eb6e2fbedfc7cf2e46e85c5139"></a>
    192. 

  192. <h2 class="memtitle"><span class="permalink"><a href="#ga4b7956eb6e2fbedfc7cf2e46e85c5139">&#9670;&nbsp;</a></span>e()</h2>
    193. 

  193. 

  194. <div class="memitem">
    195. 

  195. <div class="memproto">
    196. 

  196.       <table class="memname">
    197. 

  197.         <tr>
    198. 

  198.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::e </td>
    199. 

  199.           <td>(</td>
    200. 

  200.           <td class="paramname"></td><td>)</td>
    201. 

  201.           <td></td>
    202. 

  202.         </tr>
    203. 

  203.       </table>
    204. 

  204. </div><div class="memdoc">
    205. 

  205. 

  206. <p>Return e constant. </p>
    207. 

  207. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    208. 

  208. 

  209. </div>
    210. 

  210. </div>
    211. 

  211. <a id="gad8fe2e6f90bce9d829e9723b649fbd42"></a>
    212. 

  212. <h2 class="memtitle"><span class="permalink"><a href="#gad8fe2e6f90bce9d829e9723b649fbd42">&#9670;&nbsp;</a></span>euler()</h2>
    213. 

  213. 

  214. <div class="memitem">
    215. 

  215. <div class="memproto">
    216. 

  216.       <table class="memname">
    217. 

  217.         <tr>
    218. 

  218.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::euler </td>
    219. 

  219.           <td>(</td>
    220. 

  220.           <td class="paramname"></td><td>)</td>
    221. 

  221.           <td></td>
    222. 

  222.         </tr>
    223. 

  223.       </table>
    224. 

  224. </div><div class="memdoc">
    225. 

  225. 

  226. <p>Return Euler's constant. </p>
    227. 

  227. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    228. 

  228. 

  229. </div>
    230. 

  230. </div>
    231. 

  231. <a id="ga753950e5140e4ea6a88e4a18ba61dc09"></a>
    232. 

  232. <h2 class="memtitle"><span class="permalink"><a href="#ga753950e5140e4ea6a88e4a18ba61dc09">&#9670;&nbsp;</a></span>four_over_pi()</h2>
    233. 

  233. 

  234. <div class="memitem">
    235. 

  235. <div class="memproto">
    236. 

  236.       <table class="memname">
    237. 

  237.         <tr>
    238. 

  238.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::four_over_pi </td>
    239. 

  239.           <td>(</td>
    240. 

  240.           <td class="paramname"></td><td>)</td>
    241. 

  241.           <td></td>
    242. 

  242.         </tr>
    243. 

  243.       </table>
    244. 

  244. </div><div class="memdoc">
    245. 

  245. 

  246. <p>Return 4 / pi. </p>
    247. 

  247. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    248. 

  248. 

  249. </div>
    250. 

  250. </div>
    251. 

  251. <a id="ga748cf8642830657c5b7eae04d0a80899"></a>
    252. 

  252. <h2 class="memtitle"><span class="permalink"><a href="#ga748cf8642830657c5b7eae04d0a80899">&#9670;&nbsp;</a></span>golden_ratio()</h2>
    253. 

  253. 

  254. <div class="memitem">
    255. 

  255. <div class="memproto">
    256. 

  256.       <table class="memname">
    257. 

  257.         <tr>
    258. 

  258.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::golden_ratio </td>
    259. 

  259.           <td>(</td>
    260. 

  260.           <td class="paramname"></td><td>)</td>
    261. 

  261.           <td></td>
    262. 

  262.         </tr>
    263. 

  263.       </table>
    264. 

  264. </div><div class="memdoc">
    265. 

  265. 

  266. <p>Return the golden ratio constant. </p>
    267. 

  267. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    268. 

  268. 

  269. </div>
    270. 

  270. </div>
    271. 

  271. <a id="ga0c36b41d462e45641faf7d7938948bac"></a>
    272. 

  272. <h2 class="memtitle"><span class="permalink"><a href="#ga0c36b41d462e45641faf7d7938948bac">&#9670;&nbsp;</a></span>half_pi()</h2>
    273. 

  273. 

  274. <div class="memitem">
    275. 

  275. <div class="memproto">
    276. 

  276.       <table class="memname">
    277. 

  277.         <tr>
    278. 

  278.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::half_pi </td>
    279. 

  279.           <td>(</td>
    280. 

  280.           <td class="paramname"></td><td>)</td>
    281. 

  281.           <td></td>
    282. 

  282.         </tr>
    283. 

  283.       </table>
    284. 

  284. </div><div class="memdoc">
    285. 

  285. 

  286. <p>Return pi / 2. </p>
    287. 

  287. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    288. 

  288. 

  289. </div>
    290. 

  290. </div>
    291. 

  291. <a id="gaca94292c839ed31a405ab7a81ae7e850"></a>
    292. 

  292. <h2 class="memtitle"><span class="permalink"><a href="#gaca94292c839ed31a405ab7a81ae7e850">&#9670;&nbsp;</a></span>ln_ln_two()</h2>
    293. 

  293. 

  294. <div class="memitem">
    295. 

  295. <div class="memproto">
    296. 

  296.       <table class="memname">
    297. 

  297.         <tr>
    298. 

  298.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::ln_ln_two </td>
    299. 

  299.           <td>(</td>
    300. 

  300.           <td class="paramname"></td><td>)</td>
    301. 

  301.           <td></td>
    302. 

  302.         </tr>
    303. 

  303.       </table>
    304. 

  304. </div><div class="memdoc">
    305. 

  305. 

  306. <p>Return ln(ln(2)). </p>
    307. 

  307. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    308. 

  308. 

  309. </div>
    310. 

  310. </div>
    311. 

  311. <a id="gaf97ebc6c059ffd788e6c4946f71ef66c"></a>
    312. 

  312. <h2 class="memtitle"><span class="permalink"><a href="#gaf97ebc6c059ffd788e6c4946f71ef66c">&#9670;&nbsp;</a></span>ln_ten()</h2>
    313. 

  313. 

  314. <div class="memitem">
    315. 

  315. <div class="memproto">
    316. 

  316.       <table class="memname">
    317. 

  317.         <tr>
    318. 

  318.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::ln_ten </td>
    319. 

  319.           <td>(</td>
    320. 

  320.           <td class="paramname"></td><td>)</td>
    321. 

  321.           <td></td>
    322. 

  322.         </tr>
    323. 

  323.       </table>
    324. 

  324. </div><div class="memdoc">
    325. 

  325. 

  326. <p>Return ln(10). </p>
    327. 

  327. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    328. 

  328. 

  329. </div>
    330. 

  330. </div>
    331. 

  331. <a id="ga24f4d27765678116f41a2f336ab7975c"></a>
    332. 

  332. <h2 class="memtitle"><span class="permalink"><a href="#ga24f4d27765678116f41a2f336ab7975c">&#9670;&nbsp;</a></span>ln_two()</h2>
    333. 

  333. 

  334. <div class="memitem">
    335. 

  335. <div class="memproto">
    336. 

  336.       <table class="memname">
    337. 

  337.         <tr>
    338. 

  338.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::ln_two </td>
    339. 

  339.           <td>(</td>
    340. 

  340.           <td class="paramname"></td><td>)</td>
    341. 

  341.           <td></td>
    342. 

  342.         </tr>
    343. 

  343.       </table>
    344. 

  344. </div><div class="memdoc">
    345. 

  345. 

  346. <p>Return ln(2). </p>
    347. 

  347. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    348. 

  348. 

  349. </div>
    350. 

  350. </div>
    351. 

  351. <a id="ga39c2fb227631ca25894326529bdd1ee5"></a>
    352. 

  352. <h2 class="memtitle"><span class="permalink"><a href="#ga39c2fb227631ca25894326529bdd1ee5">&#9670;&nbsp;</a></span>one()</h2>
    353. 

  353. 

  354. <div class="memitem">
    355. 

  355. <div class="memproto">
    356. 

  356.       <table class="memname">
    357. 

  357.         <tr>
    358. 

  358.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::one </td>
    359. 

  359.           <td>(</td>
    360. 

  360.           <td class="paramname"></td><td>)</td>
    361. 

  361.           <td></td>
    362. 

  362.         </tr>
    363. 

  363.       </table>
    364. 

  364. </div><div class="memdoc">
    365. 

  365. 

  366. <p>Return 1. </p>
    367. 

  367. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    368. 

  368. 

  369. </div>
    370. 

  370. </div>
    371. 

  371. <a id="ga555150da2b06d23c8738981d5013e0eb"></a>
    372. 

  372. <h2 class="memtitle"><span class="permalink"><a href="#ga555150da2b06d23c8738981d5013e0eb">&#9670;&nbsp;</a></span>one_over_pi()</h2>
    373. 

  373. 

  374. <div class="memitem">
    375. 

  375. <div class="memproto">
    376. 

  376.       <table class="memname">
    377. 

  377.         <tr>
    378. 

  378.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::one_over_pi </td>
    379. 

  379.           <td>(</td>
    380. 

  380.           <td class="paramname"></td><td>)</td>
    381. 

  381.           <td></td>
    382. 

  382.         </tr>
    383. 

  383.       </table>
    384. 

  384. </div><div class="memdoc">
    385. 

  385. 

  386. <p>Return 1 / pi. </p>
    387. 

  387. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    388. 

  388. 

  389. </div>
    390. 

  390. </div>
    391. 

  391. <a id="ga788fa23a0939bac4d1d0205fb4f35818"></a>
    392. 

  392. <h2 class="memtitle"><span class="permalink"><a href="#ga788fa23a0939bac4d1d0205fb4f35818">&#9670;&nbsp;</a></span>one_over_root_two()</h2>
    393. 

  393. 

  394. <div class="memitem">
    395. 

  395. <div class="memproto">
    396. 

  396.       <table class="memname">
    397. 

  397.         <tr>
    398. 

  398.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::one_over_root_two </td>
    399. 

  399.           <td>(</td>
    400. 

  400.           <td class="paramname"></td><td>)</td>
    401. 

  401.           <td></td>
    402. 

  402.         </tr>
    403. 

  403.       </table>
    404. 

  404. </div><div class="memdoc">
    405. 

  405. 

  406. <p>Return 1 / sqrt(2). </p>
    407. 

  407. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    408. 

  408. 

  409. </div>
    410. 

  410. </div>
    411. 

  411. <a id="ga7c922b427986cbb2e4c6ac69874eefbc"></a>
    412. 

  412. <h2 class="memtitle"><span class="permalink"><a href="#ga7c922b427986cbb2e4c6ac69874eefbc">&#9670;&nbsp;</a></span>one_over_two_pi()</h2>
    413. 

  413. 

  414. <div class="memitem">
    415. 

  415. <div class="memproto">
    416. 

  416.       <table class="memname">
    417. 

  417.         <tr>
    418. 

  418.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::one_over_two_pi </td>
    419. 

  419.           <td>(</td>
    420. 

  420.           <td class="paramname"></td><td>)</td>
    421. 

  421.           <td></td>
    422. 

  422.         </tr>
    423. 

  423.       </table>
    424. 

  424. </div><div class="memdoc">
    425. 

  425. 

  426. <p>Return 1 / (pi * 2). </p>
    427. 

  427. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    428. 

  428. 

  429. </div>
    430. 

  430. </div>
    431. 

  431. <a id="ga3c9df42bd73c519a995c43f0f99e77e0"></a>
    432. 

  432. <h2 class="memtitle"><span class="permalink"><a href="#ga3c9df42bd73c519a995c43f0f99e77e0">&#9670;&nbsp;</a></span>quarter_pi()</h2>
    433. 

  433. 

  434. <div class="memitem">
    435. 

  435. <div class="memproto">
    436. 

  436.       <table class="memname">
    437. 

  437.         <tr>
    438. 

  438.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::quarter_pi </td>
    439. 

  439.           <td>(</td>
    440. 

  440.           <td class="paramname"></td><td>)</td>
    441. 

  441.           <td></td>
    442. 

  442.         </tr>
    443. 

  443.       </table>
    444. 

  444. </div><div class="memdoc">
    445. 

  445. 

  446. <p>Return pi / 4. </p>
    447. 

  447. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    448. 

  448. 

  449. </div>
    450. 

  450. </div>
    451. 

  451. <a id="gae9ebbded75b53d4faeb1e4ef8b3347a2"></a>
    452. 

  452. <h2 class="memtitle"><span class="permalink"><a href="#gae9ebbded75b53d4faeb1e4ef8b3347a2">&#9670;&nbsp;</a></span>root_five()</h2>
    453. 

  453. 

  454. <div class="memitem">
    455. 

  455. <div class="memproto">
    456. 

  456.       <table class="memname">
    457. 

  457.         <tr>
    458. 

  458.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::root_five </td>
    459. 

  459.           <td>(</td>
    460. 

  460.           <td class="paramname"></td><td>)</td>
    461. 

  461.           <td></td>
    462. 

  462.         </tr>
    463. 

  463.       </table>
    464. 

  464. </div><div class="memdoc">
    465. 

  465. 

  466. <p>Return sqrt(5). </p>
    467. 

  467. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    468. 

  468. 

  469. </div>
    470. 

  470. </div>
    471. 

  471. <a id="ga4e276cb823cc5e612d4f89ed99c75039"></a>
    472. 

  472. <h2 class="memtitle"><span class="permalink"><a href="#ga4e276cb823cc5e612d4f89ed99c75039">&#9670;&nbsp;</a></span>root_half_pi()</h2>
    473. 

  473. 

  474. <div class="memitem">
    475. 

  475. <div class="memproto">
    476. 

  476.       <table class="memname">
    477. 

  477.         <tr>
    478. 

  478.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::root_half_pi </td>
    479. 

  479.           <td>(</td>
    480. 

  480.           <td class="paramname"></td><td>)</td>
    481. 

  481.           <td></td>
    482. 

  482.         </tr>
    483. 

  483.       </table>
    484. 

  484. </div><div class="memdoc">
    485. 

  485. 

  486. <p>Return sqrt(pi / 2). </p>
    487. 

  487. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    488. 

  488. 

  489. </div>
    490. 

  490. </div>
    491. 

  491. <a id="ga4129412e96b33707a77c1a07652e23e2"></a>
    492. 

  492. <h2 class="memtitle"><span class="permalink"><a href="#ga4129412e96b33707a77c1a07652e23e2">&#9670;&nbsp;</a></span>root_ln_four()</h2>
    493. 

  493. 

  494. <div class="memitem">
    495. 

  495. <div class="memproto">
    496. 

  496.       <table class="memname">
    497. 

  497.         <tr>
    498. 

  498.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::root_ln_four </td>
    499. 

  499.           <td>(</td>
    500. 

  500.           <td class="paramname"></td><td>)</td>
    501. 

  501.           <td></td>
    502. 

  502.         </tr>
    503. 

  503.       </table>
    504. 

  504. </div><div class="memdoc">
    505. 

  505. 

  506. <p>Return sqrt(ln(4)). </p>
    507. 

  507. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    508. 

  508. 

  509. </div>
    510. 

  510. </div>
    511. 

  511. <a id="ga261380796b2cd496f68d2cf1d08b8eb9"></a>
    512. 

  512. <h2 class="memtitle"><span class="permalink"><a href="#ga261380796b2cd496f68d2cf1d08b8eb9">&#9670;&nbsp;</a></span>root_pi()</h2>
    513. 

  513. 

  514. <div class="memitem">
    515. 

  515. <div class="memproto">
    516. 

  516.       <table class="memname">
    517. 

  517.         <tr>
    518. 

  518.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::root_pi </td>
    519. 

  519.           <td>(</td>
    520. 

  520.           <td class="paramname"></td><td>)</td>
    521. 

  521.           <td></td>
    522. 

  522.         </tr>
    523. 

  523.       </table>
    524. 

  524. </div><div class="memdoc">
    525. 

  525. 

  526. <p>Return square root of pi. </p>
    527. 

  527. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    528. 

  528. 

  529. </div>
    530. 

  530. </div>
    531. 

  531. <a id="ga4f286be4abe88be1eed7d2a9f6cb193e"></a>
    532. 

  532. <h2 class="memtitle"><span class="permalink"><a href="#ga4f286be4abe88be1eed7d2a9f6cb193e">&#9670;&nbsp;</a></span>root_three()</h2>
    533. 

  533. 

  534. <div class="memitem">
    535. 

  535. <div class="memproto">
    536. 

  536.       <table class="memname">
    537. 

  537.         <tr>
    538. 

  538.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::root_three </td>
    539. 

  539.           <td>(</td>
    540. 

  540.           <td class="paramname"></td><td>)</td>
    541. 

  541.           <td></td>
    542. 

  542.         </tr>
    543. 

  543.       </table>
    544. 

  544. </div><div class="memdoc">
    545. 

  545. 

  546. <p>Return sqrt(3). </p>
    547. 

  547. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    548. 

  548. 

  549. </div>
    550. 

  550. </div>
    551. 

  551. <a id="ga74e607d29020f100c0d0dc46ce2ca950"></a>
    552. 

  552. <h2 class="memtitle"><span class="permalink"><a href="#ga74e607d29020f100c0d0dc46ce2ca950">&#9670;&nbsp;</a></span>root_two()</h2>
    553. 

  553. 

  554. <div class="memitem">
    555. 

  555. <div class="memproto">
    556. 

  556.       <table class="memname">
    557. 

  557.         <tr>
    558. 

  558.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::root_two </td>
    559. 

  559.           <td>(</td>
    560. 

  560.           <td class="paramname"></td><td>)</td>
    561. 

  561.           <td></td>
    562. 

  562.         </tr>
    563. 

  563.       </table>
    564. 

  564. </div><div class="memdoc">
    565. 

  565. 

  566. <p>Return sqrt(2). </p>
    567. 

  567. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    568. 

  568. 

  569. </div>
    570. 

  570. </div>
    571. 

  571. <a id="ga2bcedc575039fe0cd765742f8bbb0bd3"></a>
    572. 

  572. <h2 class="memtitle"><span class="permalink"><a href="#ga2bcedc575039fe0cd765742f8bbb0bd3">&#9670;&nbsp;</a></span>root_two_pi()</h2>
    573. 

  573. 

  574. <div class="memitem">
    575. 

  575. <div class="memproto">
    576. 

  576.       <table class="memname">
    577. 

  577.         <tr>
    578. 

  578.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::root_two_pi </td>
    579. 

  579.           <td>(</td>
    580. 

  580.           <td class="paramname"></td><td>)</td>
    581. 

  581.           <td></td>
    582. 

  582.         </tr>
    583. 

  583.       </table>
    584. 

  584. </div><div class="memdoc">
    585. 

  585. 

  586. <p>Return sqrt(2 * pi). </p>
    587. 

  587. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    588. 

  588. 

  589. </div>
    590. 

  590. </div>
    591. 

  591. <a id="gae645d3bb4076df6976b3c0821831b422"></a>
    592. 

  592. <h2 class="memtitle"><span class="permalink"><a href="#gae645d3bb4076df6976b3c0821831b422">&#9670;&nbsp;</a></span>tau()</h2>
    593. 

  593. 

  594. <div class="memitem">
    595. 

  595. <div class="memproto">
    596. 

  596.       <table class="memname">
    597. 

  597.         <tr>
    598. 

  598.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::tau </td>
    599. 

  599.           <td>(</td>
    600. 

  600.           <td class="paramname"></td><td>)</td>
    601. 

  601.           <td></td>
    602. 

  602.         </tr>
    603. 

  603.       </table>
    604. 

  604. </div><div class="memdoc">
    605. 

  605. 

  606. <p>Return unit-circle circumference, or pi * 2. </p>
    607. 

  607. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    608. 

  608. 

  609. </div>
    610. 

  610. </div>
    611. 

  611. <a id="ga3077c6311010a214b69ddc8214ec13b5"></a>
    612. 

  612. <h2 class="memtitle"><span class="permalink"><a href="#ga3077c6311010a214b69ddc8214ec13b5">&#9670;&nbsp;</a></span>third()</h2>
    613. 

  613. 

  614. <div class="memitem">
    615. 

  615. <div class="memproto">
    616. 

  616.       <table class="memname">
    617. 

  617.         <tr>
    618. 

  618.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::third </td>
    619. 

  619.           <td>(</td>
    620. 

  620.           <td class="paramname"></td><td>)</td>
    621. 

  621.           <td></td>
    622. 

  622.         </tr>
    623. 

  623.       </table>
    624. 

  624. </div><div class="memdoc">
    625. 

  625. 

  626. <p>Return 1 / 3. </p>
    627. 

  627. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    628. 

  628. 

  629. </div>
    630. 

  630. </div>
    631. 

  631. <a id="gae94950df74b0ce382b1fc1d978ef7394"></a>
    632. 

  632. <h2 class="memtitle"><span class="permalink"><a href="#gae94950df74b0ce382b1fc1d978ef7394">&#9670;&nbsp;</a></span>three_over_two_pi()</h2>
    633. 

  633. 

  634. <div class="memitem">
    635. 

  635. <div class="memproto">
    636. 

  636.       <table class="memname">
    637. 

  637.         <tr>
    638. 

  638.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::three_over_two_pi </td>
    639. 

  639.           <td>(</td>
    640. 

  640.           <td class="paramname"></td><td>)</td>
    641. 

  641.           <td></td>
    642. 

  642.         </tr>
    643. 

  643.       </table>
    644. 

  644. </div><div class="memdoc">
    645. 

  645. 

  646. <p>Return pi / 2 * 3. </p>
    647. 

  647. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    648. 

  648. 

  649. </div>
    650. 

  650. </div>
    651. 

  651. <a id="ga74eadc8a211253079683219a3ea0462a"></a>
    652. 

  652. <h2 class="memtitle"><span class="permalink"><a href="#ga74eadc8a211253079683219a3ea0462a">&#9670;&nbsp;</a></span>two_over_pi()</h2>
    653. 

  653. 

  654. <div class="memitem">
    655. 

  655. <div class="memproto">
    656. 

  656.       <table class="memname">
    657. 

  657.         <tr>
    658. 

  658.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::two_over_pi </td>
    659. 

  659.           <td>(</td>
    660. 

  660.           <td class="paramname"></td><td>)</td>
    661. 

  661.           <td></td>
    662. 

  662.         </tr>
    663. 

  663.       </table>
    664. 

  664. </div><div class="memdoc">
    665. 

  665. 

  666. <p>Return 2 / pi. </p>
    667. 

  667. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    668. 

  668. 

  669. </div>
    670. 

  670. </div>
    671. 

  671. <a id="ga5827301817640843cf02026a8d493894"></a>
    672. 

  672. <h2 class="memtitle"><span class="permalink"><a href="#ga5827301817640843cf02026a8d493894">&#9670;&nbsp;</a></span>two_over_root_pi()</h2>
    673. 

  673. 

  674. <div class="memitem">
    675. 

  675. <div class="memproto">
    676. 

  676.       <table class="memname">
    677. 

  677.         <tr>
    678. 

  678.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::two_over_root_pi </td>
    679. 

  679.           <td>(</td>
    680. 

  680.           <td class="paramname"></td><td>)</td>
    681. 

  681.           <td></td>
    682. 

  682.         </tr>
    683. 

  683.       </table>
    684. 

  684. </div><div class="memdoc">
    685. 

  685. 

  686. <p>Return 2 / sqrt(pi). </p>
    687. 

  687. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    688. 

  688. 

  689. </div>
    690. 

  690. </div>
    691. 

  691. <a id="gaa5276a4617566abcfe49286f40e3a256"></a>
    692. 

  692. <h2 class="memtitle"><span class="permalink"><a href="#gaa5276a4617566abcfe49286f40e3a256">&#9670;&nbsp;</a></span>two_pi()</h2>
    693. 

  693. 

  694. <div class="memitem">
    695. 

  695. <div class="memproto">
    696. 

  696.       <table class="memname">
    697. 

  697.         <tr>
    698. 

  698.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::two_pi </td>
    699. 

  699.           <td>(</td>
    700. 

  700.           <td class="paramname"></td><td>)</td>
    701. 

  701.           <td></td>
    702. 

  702.         </tr>
    703. 

  703.       </table>
    704. 

  704. </div><div class="memdoc">
    705. 

  705. 

  706. <p>Return pi * 2. </p>
    707. 

  707. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
    708. 

  708. 

  709. </div>
    710. 

  710. </div>
    711. 

  711. <a id="ga9b4d2f4322edcf63a6737b92a29dd1f5"></a>
    712. 

  712. <h2 class="memtitle"><span class="permalink"><a href="#ga9b4d2f4322edcf63a6737b92a29dd1f5">&#9670;&nbsp;</a></span>two_thirds()</h2>
    713. 

  713. 

  714. <div class="memitem">
    715. 

  715. <div class="memproto">
    716. 

  716.       <table class="memname">
    717. 

  717.         <tr>
    718. 

  718.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::two_thirds </td>
    719. 

  719.           <td>(</td>
    720. 

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  727. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
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    732. 

  732. <h2 class="memtitle"><span class="permalink"><a href="#ga788f5a421fc0f40a1296ebc094cbaa8a">&#9670;&nbsp;</a></span>zero()</h2>
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  738.           <td class="memname">GLM_FUNC_DECL GLM_CONSTEXPR genType glm::zero </td>
    739. 

  739.           <td>(</td>
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  746. <p>Return 0. </p>
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  747. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00908.html">GLM_GTC_constants</a> </dd></dl>
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