vdop.h File Reference

#include <vector>

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Functions
void	vddiv (std::vector< double > &x, std::vector< double > const &y, std::vector< double > const &z)
	Element-wise vector divison x_k = y_k/z_k. More...
void	vdaxpy (std::vector< double > &x, std::vector< double > const &y, double alpha, std::vector< double > const &z)
	Element-wise daxpy operation x(k) = y(k) + alpha*z(k). More...
double	dscapr (std::vector< double > const &x, std::vector< double > const &y)
	Calculates the Euclidian inner product of two vectors. More...
void	DebugVector (std::vector< double > const &v)
bool	CompareVectors (std::vector< double > const &x, int n, double const y[], double const eps=0.0)
	Compares an STL vector with POD vector. More...

Function Documentation

CompareVectors()

bool CompareVectors	(	std::vector< double > const &	x,
		int	n,
		double const	y[],
		double const	eps = 0.0
	)

Compares an STL vector with POD vector.

The accuracy criteria \( |x_k-y_k| < \varepsilon \left({1+0.5(|x_k|+|y_k|)}\right) \) follows the book by Stoyan/Baran, p.8.

Parameters

[in]	x	STL vector
[in]	n	length of POD vector
[in]	y	POD vector
[in]	eps	relative accuracy criteria (default := 0.0).

Returns

true iff pairwise vector elements are relatively close to each other.

Definition at line 66 of file vdop.cpp.

DebugVector()

void DebugVector

(

std::vector< double > const &

v

)

Print entries of a vector.

Parameters

[in]

v

vector values

dscapr()

double dscapr	(	std::vector< double > const &	x,
		std::vector< double > const &	y
	)

Calculates the Euclidian inner product of two vectors.

Parameters

[in]	x	vector
[in]	y	vector

Returns

Euclidian inner product \(\langle x,y \rangle\)

Definition at line 38 of file vdop.cpp.

vdaxpy()

void vdaxpy	(	std::vector< double > &	x,
		std::vector< double > const &	y,
		double	alpha,
		std::vector< double > const &	z
	)

Element-wise daxpy operation x(k) = y(k) + alpha*z(k).

Parameters

[out]	x	target vector
[in]	y	source vector
[in]	alpha	scalar
[in]	z	source vector

Definition at line 24 of file vdop.cpp.

vddiv()

void vddiv	(	std::vector< double > &	x,
		std::vector< double > const &	y,
		std::vector< double > const &	z
	)

Element-wise vector divison x_k = y_k/z_k.

Parameters

[out]	x	target vector
[in]	y	source vector
[in]	z	source vector