text: ///////////////////////////////////////////////////////////////////////////////////
  /// OpenGL Mathematics (glm.g-truc.net)
  ///
  /// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
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  /// of this software and associated documentation files (the "Software"), to deal
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  /// copies of the Software, and to permit persons to whom the Software is
  /// furnished to do so, subject to the following conditions:
  /// 
  /// The above copyright notice and this permission notice shall be included in
  /// all copies or substantial portions of the Software.
  /// 
  /// Restrictions:
  ///		By making use of the Software for military purposes, you choose to make
  ///		a Bunny unhappy.
  /// 
  /// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  /// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  /// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  /// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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  /// THE SOFTWARE.
  ///
  /// @ref core
  /// @file glm/detail/func_trigonometric.hpp
  /// @date 2008-08-01 / 2011-06-15
  /// @author Christophe Riccio
  ///
  /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  /// 
  /// @defgroup core_func_trigonometric Angle and Trigonometry Functions
  /// @ingroup core
  /// 
  /// Function parameters specified as angle are assumed to be in units of radians. 
  /// In no case will any of these functions result in a divide by zero error. If 
  /// the divisor of a ratio is 0, then results will be undefined.
  /// 
  /// These all operate component-wise. The description is per component.
  ///////////////////////////////////////////////////////////////////////////////////
  
  #pragma once
  
  #include "setup.hpp"
  #include "precision.hpp"
  
  namespace glm
  {
  	/// @addtogroup core_func_trigonometric
  	/// @{
  
  	/// Converts degrees to radians and returns the result.
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	///
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/radians.xml">GLSL radians man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> radians(vecType<T, P> const & degrees);
  
  	/// Converts radians to degrees and returns the result.
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/degrees.xml">GLSL degrees man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> degrees(vecType<T, P> const & radians);
  
  	/// The standard trigonometric sine function. 
  	/// The values returned by this function will range from [-1, 1].
  	/// 
  	/// @tparam genType Floating-point scalar or vector types.
  	///
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/sin.xml">GLSL sin man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> sin(vecType<T, P> const & angle);
  
  	/// The standard trigonometric cosine function. 
  	/// The values returned by this function will range from [-1, 1].
  	/// 
  	/// @tparam genType Floating-point scalar or vector types.
  	///
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/cos.xml">GLSL cos man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> cos(vecType<T, P> const & angle);
  
  	/// The standard trigonometric tangent function.
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/tan.xml">GLSL tan man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> tan(vecType<T, P> const & angle); 
  
  	/// 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.
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/asin.xml">GLSL asin man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> asin(vecType<T, P> 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.
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/acos.xml">GLSL acos man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> acos(vecType<T, P> 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. 
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/atan.xml">GLSL atan man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> atan(vecType<T, P> const & y, vecType<T, P> const & 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].
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/atan.xml">GLSL atan man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> atan(vecType<T, P> const & y_over_x);
  
  	/// Returns the hyperbolic sine function, (exp(x) - exp(-x)) / 2
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/sinh.xml">GLSL sinh man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> sinh(vecType<T, P> const & angle);
  
  	/// Returns the hyperbolic cosine function, (exp(x) + exp(-x)) / 2
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/cosh.xml">GLSL cosh man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> cosh(vecType<T, P> const & angle);
  
  	/// Returns the hyperbolic tangent function, sinh(angle) / cosh(angle)
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/tanh.xml">GLSL tanh man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> tanh(vecType<T, P> const & angle);
  
  	/// Arc hyperbolic sine; returns the inverse of sinh.
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/asinh.xml">GLSL asinh man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> asinh(vecType<T, P> const & x);
  	
  	/// Arc hyperbolic cosine; returns the non-negative inverse
  	/// of cosh. Results are undefined if x < 1.
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	/// 
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/acosh.xml">GLSL acosh man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> acosh(vecType<T, P> const & x);
  
  	/// Arc hyperbolic tangent; returns the inverse of tanh.
  	/// Results are undefined if abs(x) >= 1.
  	///
  	/// @tparam genType Floating-point scalar or vector types.
  	///
  	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/atanh.xml">GLSL atanh man page</a>
  	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.1 Angle and Trigonometry Functions</a>
  	template <typename T, precision P, template <typename, precision> class vecType>
  	GLM_FUNC_DECL vecType<T, P> atanh(vecType<T, P> const & x);
  
  	/// @}
  }//namespace glm
  
  #include "func_trigonometric.inl"
  