mathelem.h File Reference

#include <aims/config/aimsdata_config.h>
#include <cartobase/type/converter.h>
#include <cstdlib>
#include <cmath>
#include <algorithm>
#include <vector>
#include <map>
#include <limits>

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Classes
class	aims::MathUtil< T >
	Defines basic math functions that run on iterators. More...

Namespaces
	aims
	The class for EcatSino data write operation.
	aims::internal

Functions
template<typename T >
bool	aims::internal::is_min (T a, T b)
template<class T >
T	square (const T &val)
template<class T >
T	cube (const T &val)
template<class T >
T	pythagore (const T &a, const T &b)
Square, cube, ...
template<typename T >
T	aims::sqr (const T &x)
	Get the square of x. More...
template<typename T >
T	aims::cub (const T &x)
	Get the cube of x. More...
template<typename T >
float	aims::sgn (const T &x)
	Get the sign of x. More...
template<typename T >
T	aims::absdiff (const T &x, const T &y)
	Get the absolute difference between 2 values without having to take care of used type this is particularly useful for unsigned types. More...
Trigonometry
template<class T >
double	AimsArgument (T re, T im)
	Get the argument of a complex re + i.im. More...
Miscellaneous functions
AIMSDATA_API int	AimsNextPowerOfTwo (int number)
	Return the next power of two closest to an integer. More...
AIMSDATA_API double	AimsSigmoid (double x)
	Sigmoidal function (useful for neural networks) More...

Function Documentation

AimsArgument()

template<class T >

double AimsArgument ( T  re, T  im  )

inline

Get the argument of a complex re + i.im.

Definition at line 313 of file mathelem.h.

Referenced by aims::MathUtil< T >::stdev().

AimsNextPowerOfTwo()

AIMSDATA_API int AimsNextPowerOfTwo

(

int

number

)

Return the next power of two closest to an integer.

Referenced by pythagore().

AimsSigmoid()

AIMSDATA_API double AimsSigmoid

(

double

x

)

Sigmoidal function (useful for neural networks)

Referenced by pythagore().

cube()

template<class T >

T cube ( const T &  val )

inline

Definition at line 341 of file mathelem.h.

Referenced by volumeRatio().

pythagore()

template<class T >

T pythagore ( const T &  a, const T &  b  )

inline

Definition at line 348 of file mathelem.h.

References AIMSDATA_API, AimsNextPowerOfTwo(), AimsSigmoid(), and square().

square()

template<class T >

T square ( const T &  val )

inline

Definition at line 334 of file mathelem.h.

Referenced by pythagore().