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

Functions
template<typename T>
bool	aims::internal::is_min (T a, T b)
Square, cube, ...
template<typename T>
T	aims::sqr (const T &x)
	Get the square of x.
template<typename T>
T	aims::cub (const T &x)
	Get the cube of x.
template<typename T>
float	aims::sgn (const T &x)
	Get the sign of x.
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.
Trigonometry
template<class T>
double	AimsArgument (T re, T im)
	Get the argument of a complex re + i.im.
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)
Miscellaneous functions
AIMSDATA_API int	AimsNextPowerOfTwo (int number)
	Return the next power of two closest to an integer.
AIMSDATA_API double	AimsSigmoid (double x)
	Sigmoidal function (useful for neural networks)

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 351 of file mathelem.h.

AimsNextPowerOfTwo()

AIMSDATA_API int AimsNextPowerOfTwo

(

int

number

)

Return the next power of two closest to an integer.

References AIMSDATA_API.

AimsSigmoid()

AIMSDATA_API double AimsSigmoid

(

double

x

)

Sigmoidal function (useful for neural networks)

References AIMSDATA_API.

cube()

template<class T>

T cube ( const T & val )

inline

Definition at line 379 of file mathelem.h.

Referenced by volumeRatio().

pythagore()

template<class T>

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

inline

Definition at line 386 of file mathelem.h.

References square().

square()

template<class T>

T square ( const T & val )

inline

Definition at line 372 of file mathelem.h.

Referenced by pythagore().