math Namespace Reference

Functions
template<typename T >
T	atan (T x)
template<typename T >
T	atan2 (T x)
template<typename T >
T	cos (T x)
template<typename T >
T	divide (T x, T y)
template<typename T >
constexpr T	sqrt (T x) noexcept
	Compute the square root of a floating-point value.
template<typename T >
constexpr T	abs (T x) noexcept
	Compute the absolute value of a numeric value.
template<typename T >
constexpr T	sin (T x) noexcept
	Compute the sine of a floating-point value (radians).
template<typename T >
constexpr T	cos (T x) noexcept
	Compute the cosine of a floating-point value (radians).
template<typename T >
constexpr T	acos (T x) noexcept
	Compute the arc cosine of a floating-point value.

Function Documentation

abs()

template<typename T >

constexpr T math::abs ( T  x )

constexprnoexcept

Compute the absolute value of a numeric value.

Maps to hardware instructions via compiler builtins for float, double, int, and long. Falls back to branch for other types.

Template Parameters

T	Numeric type.

Parameters

x	Input value.

Returns

Absolute value of x.

acos()

template<typename T >

constexpr T math::acos ( T  x )

constexprnoexcept

Compute the arc cosine of a floating-point value.

Template Parameters

T	Floating-point type (float or double).

Parameters

x	Value in [-1, 1].

Returns

Arc cosine in radians [0, π].

atan()

template<typename T >

T math::atan

(

T

x

)

atan2()

template<typename T >

T math::atan2

(

T

x

)

cos() [1/2]

template<typename T >

T math::cos

(

T

x

)

cos() [2/2]

template<typename T >

constexpr T math::cos ( T  x )

constexprnoexcept

Compute the cosine of a floating-point value (radians).

Template Parameters

T	Floating-point type (float or double).

Parameters

x	Angle in radians.

Returns

Cosine of x.

divide()

template<typename T >

T math::divide	(	T	x,
		T	y
	)

sin()

template<typename T >

constexpr T math::sin ( T  x )

constexprnoexcept

Compute the sine of a floating-point value (radians).

Template Parameters

T	Floating-point type (float or double).

Parameters

x	Angle in radians.

Returns

Sine of x.

sqrt()

template<typename T >

constexpr T math::sqrt ( T  x )

constexprnoexcept

Compute the square root of a floating-point value.

Maps to a single hardware instruction (sqrtss/sqrtsd) via compiler builtins. Errors on negative input via MyErrorHandler.

Template Parameters

T	Floating-point type (float or double).

Parameters

x	Non-negative input value.

Returns

Square root of x.

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