exmat::Math Namespace Reference
[Mathematical functions, Mathematical functions]

Namespace for math constants, mathematical and utility functions. More...

Namespaces
namespace	ConsistencyLevel
	Consistency level.
Approximated functions
float	am_sqrt_0 (float x)
	Square root value of x.
float	am_sqrt_1 (float x)
	Square root value of x.
float	am_rsqrt_0 (float x)
	1/sqrt(x)
float	am_rsqrt_1 (float x)
	1/sqrt(x)
float	am_exp (float x)
	Exponential value of x.
float	am_log (float x)
	Logarithms value of x (base e).
float	am_pow (float x, float y)
	Calculate x raises to the power y.
float	am_sin_0 (float x)
	Sine value of x (in radian).
float	am_sin_1 (float x)
	Sine value of x (in radian).
float	am_cos_0 (float x)
	Cosine value of x (in radian).
float	am_cos_1 (float x)
	Cosine value of x (in radian).
void	am_sincos (float x, float &s, float &c)
	Sine and cosine value of x (in radian).
float	am_tan_0 (float x)
	Tangent value of x (in radian).
float	am_tan_1 (float x)
	Tangent value of x (in radian).
float	am_asin_0 (float x)
	Arc sine value (in radian) of x.
float	am_asin_1 (float x)
	Arc sine value (in radian) of x.
float	am_acos_0 (float x)
	Arc cosine value (in radian) of x.
float	am_acos_1 (float x)
	Arc cosine value (in radian) of x.
float	am_atan_0 (float x)
	Arc tangent value (in radian) of x.
float	am_atan_1 (float x)
	Arc tangent value (in radian) of x.
Numerical constants
static double	CPi ()
	Pi is the ratio of the circumference of a circle to its diameter.
static double	C2Pi ()
	2 * Pi
static double	CPi_2 ()
	Pi / 2.
static double	CPi_4 ()
	Pi / 4.
static double	C1_Pi ()
	1 / Pi
static double	C2_Pi ()
	2 / Pi
static double	CE ()
	E is the base of the natural logarithms.
static double	CSqrt2 ()
	sqrt(2)
static double	C1_Sqrt2 ()
	1 / sqrt(2)
Utility functions
static int	abs (int x)
	Absolute value of x.
static float	abs (float x)
	Absolute value of x.
static double	abs (double x)
	Absolute value of x.
static bool	isEqual (double s1, double s2, double eps=1e-6)
	isEqual test for 2 numbers are equal or not within a torrence
static float	sqrt (float x)
	Square root value.
static double	sqrt (double x)
	Square root value.
static void	sqrt (const float *in, float *out, size_t N)
	Square root value.
static float	rsqrt (float x)
	1/sqrt(x)
static double	rsqrt (double x)
	1/sqrt(x)
static void	rsqrt (const float *in, float *out, size_t N)
	1/sqrt(x)
static float	exp (float x)
	Exponential value of base e.
static double	exp (double x)
	Exponential value of base e.
static void	exp (const float *in, float *out, size_t N)
	Exponential value of base e.
static float	log (float x)
	Logarithms value of x (base e).
static double	log (double x)
	Logarithms value of x (base e).
static void	log (const float *in, float *out, size_t N)
	Logarithms value of x (base e).
static float	pow (float x, float y)
	Calculate x raises to the power y.
static double	pow (double x, double y)
	Calculate x raises to the power y.
Trigonometrical functions
static float	sin (float x)
	Sine value of x (in radian).
static double	sin (double x)
	Sine value of x (in radian).
static void	sin (const float *in, float *out, size_t N)
	Sine value of x (in radian).
static float	cos (float x)
	Cosine value of x (in radian).
static double	cos (double x)
	Sine value of x (in radian).
static void	cos (const float *in, float *out, size_t N)
	Sine value of x (in radian).
static void	sincos (float x, float &s, float &c)
	Sine and cosine value of x (in radian).
static void	sincos (double x, double &s, double &c)
	Sine and cosine value of x (in radian).
static float	tan (float x)
	Tangent value of x (in radian).
static double	tan (double x)
	Sine value of x (in radian).
static void	tan (const float *in, float *out, size_t N)
	Sine value of x (in radian).
static float	asin (float x)
	Arc sine value (in radian) of x.
static double	asin (double x)
	Sine value of x (in radian).
static void	asin (const float *in, float *out, size_t N)
	Sine value of x (in radian).
static float	acos (float x)
	Arc cosine value (in radian) of x.
static double	acos (double x)
	Sine value of x (in radian).
static void	acos (const float *in, float *out, size_t N)
	Sine value of x (in radian).
static float	atan (float x)
	Arc tangent value (in radian) of x.
static double	atan (double x)
	Sine value of x (in radian).
static void	atan (const float *in, float *out, size_t N)
	Sine value of x (in radian).
Functions
void	setConsistency (int cl=ConsistencyLevel::Default)
	Set the consistency of the approximated functions.
template<typename T>
static T	min (const T &x1, const T &x2)
	Minimum of 2 value.
template<typename T>
static T	min (const T &x1, const T &x2, const T &x3)
	Minimum of 3 value.
template<typename T>
static T	min (const T &x1, const T &x2, const T &x3, const T &x4)
	Minimum of 4 value.
template<typename T>
static T	min (const T &x1, const T &x2, const T &x3, const T &x4, const T &x5)
	Minimum of 5 value.
static float	min (const float *in, size_t N)
	Minimum value.
template<typename T>
static T	max (const T &x1, const T &x2)
	Maximum of 2 value.
template<typename T>
static T	max (const T &x1, const T &x2, const T &x3)
	Maximum of 3 value.
template<typename T>
static T	max (const T &x1, const T &x2, const T &x3, const T &x4)
	Maximum of 4 value.
template<typename T>
static T	max (const T &x1, const T &x2, const T &x3, const T &x4, const T &x5)
	Maximum of 5 value.
static float	max (const float *in, size_t N)
	Maximum value.
static float	sum (const float *in, size_t N)
	Summation.
static float	rcp (float x)
	1/x
template<class Rep, class ErrChk>
static Rep::value_type	min (Mat< Rep, ErrChk > &m)
	Min.
template<class Rep, class ErrChk>
static Rep::value_type	max (Mat< Rep, ErrChk > &m)
	Max.
template<class Rep, class ErrChk>
static Rep::value_type	sum (Mat< Rep, ErrChk > &m)
	Sum.
template<class Rep, class ErrChk>
static void	rcp (Mat< Rep, ErrChk > &m)
	1/x per element
template<class Rep, class ErrChk>
static void	sqrt (Mat< Rep, ErrChk > &m)
	Square root value per element.
template<class Rep, class ErrChk>
static void	rsqrt (Mat< Rep, ErrChk > &m)
	1/sqrt(x) per element
template<class Rep, class ErrChk>
static void	exp (Mat< Rep, ErrChk > &m)
	Exponential value per element.
template<class Rep, class ErrChk>
static void	log (Mat< Rep, ErrChk > &m)
	Logarithms value per element.
template<class Rep, class ErrChk>
static void	sin (Mat< Rep, ErrChk > &m)
	Sine value per element (in radian).
template<class Rep, class ErrChk>
static void	cos (Mat< Rep, ErrChk > &m)
	Cosine value per element (in radian).
template<class Rep, class ErrChk>
static void	tan (Mat< Rep, ErrChk > &m)
	Tangent value per element (in radian).
template<class Rep, class ErrChk>
static void	asin (Mat< Rep, ErrChk > &m)
	Arc sine value per element (in radian).
template<class Rep, class ErrChk>
static void	acos (Mat< Rep, ErrChk > &m)
	Arc cosine value per element (in radian).
template<class Rep, class ErrChk>
static void	atan (Mat< Rep, ErrChk > &m)
	Arc tangent value per element (in radian).

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Detailed Description

Namespace for math constants, mathematical and utility functions.

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Function Documentation

void exmat::Math::setConsistency (  int  cl = ConsistencyLevel::Default  )

Set the consistency of the approximated functions. See also: ConsistencyLevel

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