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vnl_math.h File Reference

Namespace with standard math functions. More...

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Compounds

class vnl_math

Functions

template<class T> T vnl_huge_val (T)

double vnl_huge_val (double)

float vnl_huge_val (float)

long int vnl_huge_val (long int)

int vnl_huge_val (int)

short vnl_huge_val (short)

char vnl_huge_val (char)

template<class T> bool vnl_math_isnan (T)

bool vnl_math_isnan (float)

bool vnl_math_isnan (double)

bool vnl_math_isnan (long double)

template<class T> bool vnl_math_isinf (T)

bool vnl_math_isinf (float)

bool vnl_math_isinf (double)

bool vnl_math_isinf (long double)

template<class T> bool vnl_math_isfinite (T)

bool vnl_math_isfinite (float)

bool vnl_math_isfinite (double)

bool vnl_math_isfinite (long double)

long vnl_math_rnd (float x)

int vnl_math_rnd (double x)

int vnl_math_abs (int x)

unsigned vnl_math_abs (unsigned x)

long vnl_math_abs (long x)

float vnl_math_abs (float x)

double vnl_math_abs (double x)

int vnl_math_max (int x, int y)

unsigned vnl_math_max (unsigned x, unsigned y)

long vnl_math_max (long x, long y)

float vnl_math_max (float x, float y)

double vnl_math_max (double x, double y)

int vnl_math_min (int x, int y)

unsigned vnl_math_min (unsigned x, unsigned y)

long vnl_math_min (long x, long y)

float vnl_math_min (float x, float y)

double vnl_math_min (double x, double y)

int vnl_math_sqr (int x)

unsigned vnl_math_sqr (unsigned x)

long vnl_math_sqr (long x)

float vnl_math_sqr (float x)

double vnl_math_sqr (double x)

int vnl_math_sgn (int x)

int vnl_math_sgn (long x)

int vnl_math_sgn (float x)

int vnl_math_sgn (double x)

int vnl_math_sgn0 (int x)

int vnl_math_sgn0 (long x)

int vnl_math_sgn0 (float x)

int vnl_math_sgn0 (double x)

int vnl_math_squared_magnitude (int x)

unsigned vnl_math_squared_magnitude (unsigned x)

long vnl_math_squared_magnitude (long x)

float vnl_math_squared_magnitude (float x)

double vnl_math_squared_magnitude (double x)

float vnl_math_sqrt (float x)

double vnl_math_sqrt (double x)

float vnl_math_cuberoot (float a)

double vnl_math_cuberoot (double a)

double vnl_math_hypot (int x, int y)

float vnl_math_hypot (float x, float y)

double vnl_math_hypot (double x, double y)

Detailed Description

Namespace with standard math functions.

Author:: Andrew W. Fitzgibbon, Oxford RRG, July 13, 1996 The vnl_math namespace provides a standard set of the simple mathematical functions (min, max, sqr, sgn, rnd, abs), and some predefined constants such as pi and e, which are not defined by the ANSI C++ standard.

There are complex versions defined in vnl_complex.h

That's right, M_PI is nonstandard!

Aside from e, pi and their associates the class also defines eps, the IEEE double machine precision. This is the smallest number eps such that 1+eps != 1.

The operations are overloaded for int, float and double arguments, which in combination with inlining can make them more efficient than their counterparts in the standard C library.

Definition in file vnl_math.h.

Function Documentation

char vnl_huge_val ( char )

short vnl_huge_val ( short )

int vnl_huge_val ( int )

long int vnl_huge_val ( long int )

float vnl_huge_val ( float )

double vnl_huge_val ( double )

template<class T>

T vnl_huge_val ( T )

Type-accessible infinities for use in templates.

double vnl_math_abs ( double x ) [inline]

Definition at line 106 of file vnl_math.h.

float vnl_math_abs ( float x ) [inline]

Definition at line 105 of file vnl_math.h.

long double vnl_math_abs ( long x ) [inline]

Definition at line 103 of file vnl_math.h.

unsigned long vnl_math_abs ( unsigned x ) [inline]

Definition at line 102 of file vnl_math.h.

int vnl_math_abs ( int x ) [inline]

Definition at line 101 of file vnl_math.h.

double vnl_math_cuberoot ( double a ) [inline]

Definition at line 157 of file vnl_math.h.

float vnl_math_cuberoot ( float a ) [inline]

Definition at line 156 of file vnl_math.h.

double vnl_math_hypot ( double x,

double y

) [inline]

Definition at line 162 of file vnl_math.h.

float vnl_math_hypot ( float x,

float y

) [inline]

Definition at line 161 of file vnl_math.h.

double vnl_math_hypot ( int x,

int y

) [inline]

Definition at line 160 of file vnl_math.h.

bool vnl_math_isfinite ( long double )

bool vnl_math_isfinite ( double )

bool vnl_math_isfinite ( float )

template<class T>

bool vnl_math_isfinite ( T ) [inline]

Definition at line 91 of file vnl_math.h.

bool vnl_math_isinf ( long double )

bool vnl_math_isinf ( double )

bool vnl_math_isinf ( float )

template<class T>

bool vnl_math_isinf ( T ) [inline]

Definition at line 85 of file vnl_math.h.

bool vnl_math_isnan ( long double )

bool vnl_math_isnan ( double )

bool vnl_math_isnan ( float )

template<class T>

bool vnl_math_isnan ( T ) [inline]

Definition at line 79 of file vnl_math.h.

double vnl_math_max ( double x,

double y

) [inline]

Definition at line 114 of file vnl_math.h.

float vnl_math_max ( float x,

float y

) [inline]

Definition at line 113 of file vnl_math.h.

long vnl_math_max ( long x,

long y

) [inline]

Definition at line 112 of file vnl_math.h.

unsigned vnl_math_max ( unsigned x,

unsigned y

) [inline]

Definition at line 111 of file vnl_math.h.

int vnl_math_max ( int x,

int y

) [inline]

Definition at line 110 of file vnl_math.h.

double vnl_math_min ( double x,

double y

) [inline]

Definition at line 121 of file vnl_math.h.

float vnl_math_min ( float x,

float y

) [inline]

Definition at line 120 of file vnl_math.h.

long vnl_math_min ( long x,

long y

) [inline]

Definition at line 119 of file vnl_math.h.

unsigned vnl_math_min ( unsigned x,

unsigned y

) [inline]

Definition at line 118 of file vnl_math.h.

int vnl_math_min ( int x,

int y

) [inline]

Definition at line 117 of file vnl_math.h.

int vnl_math_rnd ( double x ) [inline]

Definition at line 98 of file vnl_math.h.
Referenced by itk::ImageFunction< TInputImage, TInputImage::PixelType, TCoordRep >::ConvertContinuousIndexToNearestIndex().

long vnl_math_rnd ( float x ) [inline]

Definition at line 97 of file vnl_math.h.

int vnl_math_sgn ( double x ) [inline]

Definition at line 134 of file vnl_math.h.

int vnl_math_sgn ( float x ) [inline]

Definition at line 133 of file vnl_math.h.

int vnl_math_sgn ( long x ) [inline]

Definition at line 132 of file vnl_math.h.

int vnl_math_sgn ( int x ) [inline]

Definition at line 131 of file vnl_math.h.

int vnl_math_sgn0 ( double x ) [inline]

Definition at line 140 of file vnl_math.h.

int vnl_math_sgn0 ( float x ) [inline]

Definition at line 139 of file vnl_math.h.

int vnl_math_sgn0 ( long x ) [inline]

Definition at line 138 of file vnl_math.h.

int vnl_math_sgn0 ( int x ) [inline]

Definition at line 137 of file vnl_math.h.

double vnl_math_sqr ( double x ) [inline]

Definition at line 128 of file vnl_math.h.
Referenced by itk::GaussianKernelFunction::Evaluate().

float vnl_math_sqr ( float x ) [inline]

Definition at line 127 of file vnl_math.h.

long vnl_math_sqr ( long x ) [inline]

Definition at line 126 of file vnl_math.h.

unsigned vnl_math_sqr ( unsigned x ) [inline]

Definition at line 125 of file vnl_math.h.

int vnl_math_sqr ( int x ) [inline]

Definition at line 124 of file vnl_math.h.

double vnl_math_sqrt ( double x ) [inline]

Definition at line 153 of file vnl_math.h.
Referenced by itk::RGBPixel< TPixel >::GetNthComponent().

float vnl_math_sqrt ( float x ) [inline]

Definition at line 152 of file vnl_math.h.

double vnl_math_squared_magnitude ( double x ) [inline]

Definition at line 148 of file vnl_math.h.

float vnl_math_squared_magnitude ( float x ) [inline]

Definition at line 147 of file vnl_math.h.

long double vnl_math_squared_magnitude ( long x ) [inline]

Definition at line 145 of file vnl_math.h.

unsigned long vnl_math_squared_magnitude ( unsigned x ) [inline]

Definition at line 144 of file vnl_math.h.

int vnl_math_squared_magnitude ( int x ) [inline]

Definition at line 143 of file vnl_math.h.

Generated at Fri May 21 01:16:08 2004 for ITK by

Compounds
class	vnl_math
Functions
template<class T> T	vnl_huge_val (T)
double	vnl_huge_val (double)
float	vnl_huge_val (float)
long int	vnl_huge_val (long int)
int	vnl_huge_val (int)
short	vnl_huge_val (short)
char	vnl_huge_val (char)
template<class T> bool	vnl_math_isnan (T)
bool	vnl_math_isnan (float)
bool	vnl_math_isnan (double)
bool	vnl_math_isnan (long double)
template<class T> bool	vnl_math_isinf (T)
bool	vnl_math_isinf (float)
bool	vnl_math_isinf (double)
bool	vnl_math_isinf (long double)
template<class T> bool	vnl_math_isfinite (T)
bool	vnl_math_isfinite (float)
bool	vnl_math_isfinite (double)
bool	vnl_math_isfinite (long double)
long	vnl_math_rnd (float x)
int	vnl_math_rnd (double x)
int	vnl_math_abs (int x)
unsigned	vnl_math_abs (unsigned x)
long	vnl_math_abs (long x)
float	vnl_math_abs (float x)
double	vnl_math_abs (double x)
int	vnl_math_max (int x, int y)
unsigned	vnl_math_max (unsigned x, unsigned y)
long	vnl_math_max (long x, long y)
float	vnl_math_max (float x, float y)
double	vnl_math_max (double x, double y)
int	vnl_math_min (int x, int y)
unsigned	vnl_math_min (unsigned x, unsigned y)
long	vnl_math_min (long x, long y)
float	vnl_math_min (float x, float y)
double	vnl_math_min (double x, double y)
int	vnl_math_sqr (int x)
unsigned	vnl_math_sqr (unsigned x)
long	vnl_math_sqr (long x)
float	vnl_math_sqr (float x)
double	vnl_math_sqr (double x)
int	vnl_math_sgn (int x)
int	vnl_math_sgn (long x)
int	vnl_math_sgn (float x)
int	vnl_math_sgn (double x)
int	vnl_math_sgn0 (int x)
int	vnl_math_sgn0 (long x)
int	vnl_math_sgn0 (float x)
int	vnl_math_sgn0 (double x)
int	vnl_math_squared_magnitude (int x)
unsigned	vnl_math_squared_magnitude (unsigned x)
long	vnl_math_squared_magnitude (long x)
float	vnl_math_squared_magnitude (float x)
double	vnl_math_squared_magnitude (double x)
float	vnl_math_sqrt (float x)
double	vnl_math_sqrt (double x)
float	vnl_math_cuberoot (float a)
double	vnl_math_cuberoot (double a)
double	vnl_math_hypot (int x, int y)
float	vnl_math_hypot (float x, float y)
double	vnl_math_hypot (double x, double y)