amrex::Math Namespace Reference

Namespaces
namespace	detail

Classes
struct	FastDivmodU64

Functions
template<typename T >
constexpr std::enable_if_t< std::is_floating_point_v< T >, T >	pi ()
__host__ __device__ double	cospi (double x)
	Return cos(x*pi) given x.
__host__ __device__ float	cospi (float x)
	Return cos(x*pi) given x.
__host__ __device__ double	sinpi (double x)
	Return sin(x*pi) given x.
__host__ __device__ float	sinpi (float x)
	Return sin(x*pi) given x.
__host__ __device__ std::pair< double, double >	sincos (double x)
	Return sine and cosine of given number.
__host__ __device__ std::pair< float, float >	sincos (float x)
	Return sine and cosine of given number.
__host__ __device__ std::pair< double, double >	sincospi (double x)
	Return sin(pi*x) and cos(pi*x) given x.
__host__ __device__ std::pair< float, float >	sincospi (float x)
	Return sin(pi*x) and cos(pi*x) given x.
template<int Power, typename T , typename = std::enable_if_t<!std::is_integral<T>() || Power>=0>
constexpr T	powi (T x) noexcept
	Return pow(x, Power), where Power is an integer known at compile time.
template<typename T >
__host__ __device__ T	comp_ellint_1 (T k)
template<typename T >
__host__ __device__ T	comp_ellint_2 (T k)
__host__ __device__ double	rsqrt (double x)
	Return inverse square root of x.
__host__ __device__ float	rsqrt (float x)
	Return inverse square root of x.

Function Documentation

comp_ellint_1()

template<typename T >

__host__ __device__ T amrex::Math::comp_ellint_1 ( T  k )

inline

comp_ellint_2()

template<typename T >

__host__ __device__ T amrex::Math::comp_ellint_2 ( T  k )

inline

cospi() [1/2]

__host__ __device__ double amrex::Math::cospi ( double  x )

inline

Return cos(x*pi) given x.

cospi() [2/2]

__host__ __device__ float amrex::Math::cospi ( float  x )

inline

Return cos(x*pi) given x.

pi()

template<typename T >

constexpr std::enable_if_t< std::is_floating_point_v< T >, T > amrex::Math::pi ( )

constexpr

powi()

template<int Power, typename T , typename = std::enable_if_t<!std::is_integral<T>() || Power>=0>

constexpr T amrex::Math::powi ( T  x )

inlineconstexprnoexcept

Return pow(x, Power), where Power is an integer known at compile time.

rsqrt() [1/2]

__host__ __device__ double amrex::Math::rsqrt ( double  x )

inline

Return inverse square root of x.

rsqrt() [2/2]

__host__ __device__ float amrex::Math::rsqrt ( float  x )

inline

Return inverse square root of x.

sincos() [1/2]

__host__ __device__ std::pair< double, double > amrex::Math::sincos ( double  x )

inline

Return sine and cosine of given number.

sincos() [2/2]

__host__ __device__ std::pair< float, float > amrex::Math::sincos ( float  x )

inline

Return sine and cosine of given number.

sincospi() [1/2]

__host__ __device__ std::pair< double, double > amrex::Math::sincospi ( double  x )

inline

Return sin(pi*x) and cos(pi*x) given x.

sincospi() [2/2]

__host__ __device__ std::pair< float, float > amrex::Math::sincospi ( float  x )

inline

Return sin(pi*x) and cos(pi*x) given x.

sinpi() [1/2]

__host__ __device__ double amrex::Math::sinpi ( double  x )

inline

Return sin(x*pi) given x.

sinpi() [2/2]

__host__ __device__ float amrex::Math::sinpi ( float  x )

inline

Return sin(x*pi) given x.