# GLM: glm::core::function::trigonometric Namespace Reference

# glm::core::function::trigonometric Namespace Reference

Define Angle and trigonometry functions from Section 8.1 of GLSL 1.30.8 specification. More...

## Functions

template<typename genType >
genType | acos (genType const &x)
| Arc cosine.
template<typename genType >
genType | acosh (genType const &x)
| Arc hyperbolic cosine; returns the non-negative inverse of cosh.
template<typename genType >
genType | asin (genType const &x)
| Arc sine.
template<typename genType >
genType | asinh (genType const &x)
| Arc hyperbolic sine; returns the inverse of sinh.
template<typename genType >
genType | atan (genType const &y_over_x)
| Arc tangent.
template<typename genType >
genType | atan (genType const &y, genType const &x)
| Arc tangent.
template<typename genType >
genType | atanh (genType const &x)
| Arc hyperbolic tangent; returns the inverse of tanh.
template<typename genType >
genType | cos (genType const &angle)
| The standard trigonometric cosine function.
template<typename genType >
genType | cosh (genType const &angle)
| Returns the hyperbolic cosine function, (exp(x) + exp(-x)) / 2 (From GLSL 1.30.08 specification, section 8.1).
template<typename genType >
genType | degrees (genType const &radians)
| Converts radians to degrees and returns the result.
template<typename genType >
genType | radians (genType const &degrees)
| Converts degrees to radians and returns the result.
template<typename genType >
genType | sin (genType const &angle)
| The standard trigonometric sine function.
template<typename genType >
genType | sinh (genType const &angle)
| Returns the hyperbolic sine function, (exp(x) - exp(-x)) / 2 (From GLSL 1.30.08 specification, section 8.1).
template<typename genType >
genType | tan (genType const &angle)
| The standard trigonometric tangent function.
template<typename genType >
genType | tanh (genType const &angle)
| Returns the hyperbolic tangent function, sinh(angle) / cosh(angle) (From GLSL 1.30.08 specification, section 8.1).

## Detailed Description

Define Angle and trigonometry functions from Section 8.1 of GLSL 1.30.8 specification.

Included in glm namespace.

## Function Documentation

genType glm::core::function::trigonometric::acos | ( | genType const & | x | ) |

Arc cosine.

Returns an angle whose sine is x. The range of values returned by this function is [0, PI]. Results are undefined if |x| > 1. (From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::acosh | ( | genType const & | x | ) |

Arc hyperbolic cosine; returns the non-negative inverse of cosh.

Results are undefined if x < 1. (From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::asin | ( | genType const & | x | ) |

Arc sine.

Returns an angle whose sine is x. The range of values returned by this function is [-PI/2, PI/2]. Results are undefined if |x| > 1. (From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::asinh | ( | genType const & | x | ) |

Arc hyperbolic sine; returns the inverse of sinh.

(From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::atan | ( | genType const & | y_over_x | ) |

Arc tangent.

Returns an angle whose tangent is y_over_x. The range of values returned by this function is [-PI/2, PI/2]. (From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::atan | ( | genType const & | y,
|  | genType const & | x |
| ) |  |  |

Arc tangent.

Returns an angle whose tangent is y/x. The signs of x and y are used to determine what quadrant the angle is in. The range of values returned by this function is [-PI, PI]. Results are undefined if x and y are both 0. (From GLSL 1.30.08 specification, section 8.1)

Referenced by glm::gtx::compatibility::atan2().

genType glm::core::function::trigonometric::atanh | ( | genType const & | x | ) |

Arc hyperbolic tangent; returns the inverse of tanh.

Results are undefined if abs(x) >= 1. (From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::cos | ( | genType const & | angle | ) |

The standard trigonometric cosine function.

The values returned by this function will range from [-1, 1]. (From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::degrees | ( | genType const & | radians | ) |

Converts radians to degrees and returns the result.

(From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::radians | ( | genType const & | degrees | ) |

Converts degrees to radians and returns the result.

(From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::sin | ( | genType const & | angle | ) |

The standard trigonometric sine function.

The values returned by this function will range from [-1, 1]. (From GLSL 1.30.08 specification, section 8.1)

genType glm::core::function::trigonometric::tan | ( | genType const & | angle | ) |

The standard trigonometric tangent function.

(From GLSL 1.30.08 specification, section 8.1)