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  49. <div class="title">constants.hpp</div>  </div>
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  52. <a href="a00018.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div>
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  53. <div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#pragma once</span></div>
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  54. <div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div>
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  55. <div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">// Dependencies</span></div>
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  56. <div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#include &quot;../detail/setup.hpp&quot;</span></div>
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  57. <div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div>
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  58. <div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="preprocessor">#if(defined(GLM_MESSAGES) &amp;&amp; !defined(GLM_EXT_INCLUDED))</span></div>
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  59. <div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="preprocessor">#       pragma message(&quot;GLM: GLM_GTC_constants extension included&quot;)</span></div>
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  65. <div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> genType&gt;</div>
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  75. <div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00168.html#gae671930537266a9a650ccb4b88757692">pi</a>();</div>
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  84. <div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00168.html#ga7f7a1050729f3b03b1873a06ba4a472f">half_pi</a>();</div>
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  114. <div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00168.html#gae991b4d39c57b57990054eec3677597c">root_two_pi</a>();</div>
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  117. <div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00168.html#ga9cae3fad9314e34c1d3aab71fcdef05f">root_ln_four</a>();</div>
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  138. <div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00168.html#ga48addf0cb0980277d208a71a1c59c073">ln_ten</a>();</div>
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  141. <div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00168.html#ga650774609debe4a90bcac449b574de2c">ln_ln_two</a>();</div>
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  149. <div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> genType&gt;</div>
    150. 

  150. <div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00168.html#gafd53093ef2d756333865d774bea3cdf9">golden_ratio</a>();</div>
    151. 

  151. <div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;</div>
    152. 

  152. <div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;} <span class="comment">//namespace glm</span></div>
    153. 

  153. <div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;</div>
    154. 

  154. <div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;<span class="preprocessor">#include &quot;constants.inl&quot;</span></div>
    155. 

  155. <div class="ttc" id="a00168_html_ga6f14b46653b7ead1edcbd0fc6c9c5289"><div class="ttname"><a href="a00168.html#ga6f14b46653b7ead1edcbd0fc6c9c5289">glm::euler</a></div><div class="ttdeci">GLM_FUNC_DECL genType euler()</div><div class="ttdoc">Return Euler&#39;s constant. </div></div>
    156. 

  156. <div class="ttc" id="a00168_html_ga85729d38c47351686e8659f80447a7ea"><div class="ttname"><a href="a00168.html#ga85729d38c47351686e8659f80447a7ea">glm::two_over_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType two_over_pi()</div><div class="ttdoc">Return 2 / pi. </div></div>
    157. 

  157. <div class="ttc" id="a00168_html_ga9f3732bc75c0d0892f72e21cfe4f938b"><div class="ttname"><a href="a00168.html#ga9f3732bc75c0d0892f72e21cfe4f938b">glm::three_over_two_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType three_over_two_pi()</div><div class="ttdoc">Return pi / 2 * 3. </div></div>
    158. 

  158. <div class="ttc" id="a00168_html_ga1cfeb345f34f72697d14f4db8d5d4c6c"><div class="ttname"><a href="a00168.html#ga1cfeb345f34f72697d14f4db8d5d4c6c">glm::root_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType root_pi()</div><div class="ttdoc">Return square root of pi. </div></div>
    159. 

  159. <div class="ttc" id="a00168_html_ga8186ec2c330457d41d9686c47cd3b2d1"><div class="ttname"><a href="a00168.html#ga8186ec2c330457d41d9686c47cd3b2d1">glm::one</a></div><div class="ttdeci">GLM_FUNC_DECL genType one()</div><div class="ttdoc">Return 1. </div></div>
    160. 

  160. <div class="ttc" id="a00168_html_ga9cae3fad9314e34c1d3aab71fcdef05f"><div class="ttname"><a href="a00168.html#ga9cae3fad9314e34c1d3aab71fcdef05f">glm::root_ln_four</a></div><div class="ttdeci">GLM_FUNC_DECL genType root_ln_four()</div><div class="ttdoc">Return sqrt(ln(4)). </div></div>
    161. 

  161. <div class="ttc" id="a00168_html_ga00c3f7bc750ff62bbf47c8913a53daa5"><div class="ttname"><a href="a00168.html#ga00c3f7bc750ff62bbf47c8913a53daa5">glm::two_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType two_pi()</div><div class="ttdoc">Return pi * 2. </div></div>
    162. 

  162. <div class="ttc" id="a00168_html_gace2b8dfed1ab9fabbb67dde08e7e5b58"><div class="ttname"><a href="a00168.html#gace2b8dfed1ab9fabbb67dde08e7e5b58">glm::root_five</a></div><div class="ttdeci">GLM_FUNC_DECL genType root_five()</div><div class="ttdoc">Return sqrt(5). </div></div>
    163. 

  163. <div class="ttc" id="a00168_html_gab83fb6de0f05d6c0d11bdf0479f8319e"><div class="ttname"><a href="a00168.html#gab83fb6de0f05d6c0d11bdf0479f8319e">glm::e</a></div><div class="ttdeci">GLM_FUNC_DECL genType e()</div><div class="ttdoc">Return e constant. </div></div>
    164. 

  164. <div class="ttc" id="a00168_html_ga0148d757b4bfda4d86251b8d1ea1dad3"><div class="ttname"><a href="a00168.html#ga0148d757b4bfda4d86251b8d1ea1dad3">glm::quarter_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType quarter_pi()</div><div class="ttdoc">Return pi / 4. </div></div>
    165. 

  165. <div class="ttc" id="a00168_html_gacb41049b8d22c8aa90e362b96c524feb"><div class="ttname"><a href="a00168.html#gacb41049b8d22c8aa90e362b96c524feb">glm::epsilon</a></div><div class="ttdeci">GLM_FUNC_DECL genType epsilon()</div><div class="ttdoc">Return the epsilon constant for floating point types. </div></div>
    166. 

  166. <div class="ttc" id="a00168_html_ga22fae798430edc3022766af4fd83e8a4"><div class="ttname"><a href="a00168.html#ga22fae798430edc3022766af4fd83e8a4">glm::ln_two</a></div><div class="ttdeci">GLM_FUNC_DECL genType ln_two()</div><div class="ttdoc">Return ln(2). </div></div>
    167. 

  167. <div class="ttc" id="a00168_html_gab91b7799f88f9f2be33e385dec11b9c2"><div class="ttname"><a href="a00168.html#gab91b7799f88f9f2be33e385dec11b9c2">glm::root_two</a></div><div class="ttdeci">GLM_FUNC_DECL genType root_two()</div><div class="ttdoc">Return sqrt(2). </div></div>
    168. 

  168. <div class="ttc" id="a00168_html_gab3183635ac615473e2f95852f491be83"><div class="ttname"><a href="a00168.html#gab3183635ac615473e2f95852f491be83">glm::root_three</a></div><div class="ttdeci">GLM_FUNC_DECL genType root_three()</div><div class="ttdoc">Return sqrt(3). </div></div>
    169. 

  169. <div class="ttc" id="a00168_html_gadde7f2efce3b14c8b26944fbafed4a10"><div class="ttname"><a href="a00168.html#gadde7f2efce3b14c8b26944fbafed4a10">glm::two_thirds</a></div><div class="ttdeci">GLM_FUNC_DECL genType two_thirds()</div><div class="ttdoc">Return 2 / 3. </div></div>
    170. 

  170. <div class="ttc" id="a00146_html"><div class="ttname"><a href="a00146.html">glm</a></div><div class="ttdef"><b>Definition:</b> <a href="a00003_source.html#l00040">_noise.hpp:40</a></div></div>
    171. 

  171. <div class="ttc" id="a00168_html_ga650774609debe4a90bcac449b574de2c"><div class="ttname"><a href="a00168.html#ga650774609debe4a90bcac449b574de2c">glm::ln_ln_two</a></div><div class="ttdeci">GLM_FUNC_DECL genType ln_ln_two()</div><div class="ttdoc">Return ln(ln(2)). </div></div>
    172. 

  172. <div class="ttc" id="a00168_html_ga5cc97dd01d37fc199264ff6030578435"><div class="ttname"><a href="a00168.html#ga5cc97dd01d37fc199264ff6030578435">glm::zero</a></div><div class="ttdeci">GLM_FUNC_DECL genType zero()</div><div class="ttdoc">Return 0. </div></div>
    173. 

  173. <div class="ttc" id="a00168_html_gac1a9b3248357fd9e9b740bed90e0b1b7"><div class="ttname"><a href="a00168.html#gac1a9b3248357fd9e9b740bed90e0b1b7">glm::one_over_root_two</a></div><div class="ttdeci">GLM_FUNC_DECL genType one_over_root_two()</div><div class="ttdoc">Return 1 / sqrt(2). </div></div>
    174. 

  174. <div class="ttc" id="a00168_html_gae991b4d39c57b57990054eec3677597c"><div class="ttname"><a href="a00168.html#gae991b4d39c57b57990054eec3677597c">glm::root_two_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType root_two_pi()</div><div class="ttdoc">Return sqrt(2 * pi). </div></div>
    175. 

  175. <div class="ttc" id="a00168_html_gaec5af85e2148c118aad7e797430fdeb0"><div class="ttname"><a href="a00168.html#gaec5af85e2148c118aad7e797430fdeb0">glm::root_half_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType root_half_pi()</div><div class="ttdoc">Return sqrt(pi / 2). </div></div>
    176. 

  176. <div class="ttc" id="a00168_html_ga9ba09a027db6d4f4e259b01cf5d6c178"><div class="ttname"><a href="a00168.html#ga9ba09a027db6d4f4e259b01cf5d6c178">glm::one_over_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType one_over_pi()</div><div class="ttdoc">Return 1 / pi. </div></div>
    177. 

  177. <div class="ttc" id="a00168_html_gafb68d06c9c9dc234210ce91d6707faac"><div class="ttname"><a href="a00168.html#gafb68d06c9c9dc234210ce91d6707faac">glm::four_over_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType four_over_pi()</div><div class="ttdoc">Return 4 / pi. </div></div>
    178. 

  178. <div class="ttc" id="a00168_html_ga767e539c20585bf60aa63595b0f0b259"><div class="ttname"><a href="a00168.html#ga767e539c20585bf60aa63595b0f0b259">glm::two_over_root_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType two_over_root_pi()</div><div class="ttdoc">Return 2 / sqrt(pi). </div></div>
    179. 

  179. <div class="ttc" id="a00168_html_ga48addf0cb0980277d208a71a1c59c073"><div class="ttname"><a href="a00168.html#ga48addf0cb0980277d208a71a1c59c073">glm::ln_ten</a></div><div class="ttdeci">GLM_FUNC_DECL genType ln_ten()</div><div class="ttdoc">Return ln(10). </div></div>
    180. 

  180. <div class="ttc" id="a00168_html_gac1e7dcb42b09c66df7a299c0f007b27d"><div class="ttname"><a href="a00168.html#gac1e7dcb42b09c66df7a299c0f007b27d">glm::one_over_two_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType one_over_two_pi()</div><div class="ttdoc">Return 1 / (pi * 2). </div></div>
    181. 

  181. <div class="ttc" id="a00168_html_gae671930537266a9a650ccb4b88757692"><div class="ttname"><a href="a00168.html#gae671930537266a9a650ccb4b88757692">glm::pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType pi()</div><div class="ttdoc">Return the pi constant. </div></div>
    182. 

  182. <div class="ttc" id="a00168_html_gabf280496105e0ad070287417f840ebd8"><div class="ttname"><a href="a00168.html#gabf280496105e0ad070287417f840ebd8">glm::third</a></div><div class="ttdeci">GLM_FUNC_DECL genType third()</div><div class="ttdoc">Return 1 / 3. </div></div>
    183. 

  183. <div class="ttc" id="a00168_html_gafd53093ef2d756333865d774bea3cdf9"><div class="ttname"><a href="a00168.html#gafd53093ef2d756333865d774bea3cdf9">glm::golden_ratio</a></div><div class="ttdeci">GLM_FUNC_DECL genType golden_ratio()</div><div class="ttdoc">Return the golden ratio constant. </div></div>
    184. 

  184. <div class="ttc" id="a00168_html_ga7f7a1050729f3b03b1873a06ba4a472f"><div class="ttname"><a href="a00168.html#ga7f7a1050729f3b03b1873a06ba4a472f">glm::half_pi</a></div><div class="ttdeci">GLM_FUNC_DECL genType half_pi()</div><div class="ttdoc">Return pi / 2. </div></div>
    185. 

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    186. 

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