matpackVII.cc File Reference

#include "matpackVII.h"

Include dependency graph for matpackVII.cc:

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Functions
ostream &	operator<< (ostream &os, const ConstTensor7View &v)
	Output operator.
void	copy (ConstIterator7D origin, const ConstIterator7D &end, Iterator7D target)
	Copy data between begin and end to target.
void	copy (Numeric x, Iterator7D target, const Iterator7D &end)
	Copy a scalar to all elements.
void	transform (Tensor7View y, double(&my_func)(double), ConstTensor7View x)
	A generic transform function for tensors, which can be used to implement mathematical functions operating on all elements.
Numeric	max (const ConstTensor7View &x)
	Max function, tensor version.
Numeric	min (const ConstTensor7View &x)
	Min function, tensor version.
Numeric	debug_tensor7view_get_elem (Tensor7View &tv, Index l, Index v, Index s, Index b, Index p, Index r, Index c)
	Helper function to access tensor elements.

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Detailed Description

Author:

Oliver Lemke

Date:

2002-11-21

Definition in file matpackVII.cc.

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Function Documentation

void copy	(	Numeric	x,
		Iterator7D	target,
		const Iterator7D &	end
	)

Copy a scalar to all elements.

Definition at line 5194 of file matpackVII.cc.

References copy().

void copy	(	ConstIterator7D	origin,
		const ConstIterator7D &	end,
		Iterator7D	target
	)

Copy data between begin and end to target.

Target must be a valid area of memory. Note that the strides in the iterators can be different, so that we can copy data between different kinds of subtensors.

Definition at line 5179 of file matpackVII.cc.

References copy().

Numeric debug_tensor7view_get_elem	(	Tensor7View &	tv,
		Index	l,
		Index	v,
		Index	s,
		Index	b,
		Index	p,
		Index	r,
		Index	c
	)

Helper function to access tensor elements.

Because of function inlining the operator() is not accessible from the debuggger. This function helps to access Tensor elements from within the debugger.

Parameters:

	tv	TensorView
	l	Library index
	v	Vitrine index
	s	Shelf index
	b	Book index
	p	Page index
	r	Row index
	c	Column index

Author:

Oliver Lemke

Date:

2004-05-10

Definition at line 5510 of file matpackVII.cc.

Numeric max

(

const ConstTensor7View &

x

)

Max function, tensor version.

Definition at line 5444 of file matpackVII.cc.

References ConstTensor7View::begin(), ConstTensor7View::end(), and max.

Numeric min

(

const ConstTensor7View &

x

)

Min function, tensor version.

Definition at line 5466 of file matpackVII.cc.

References ConstTensor7View::begin(), ConstTensor7View::end(), and min.

ostream& operator<<	(	ostream &	os,
		const ConstTensor7View &	v
	)

Output operator.

This demonstrates how iterators can be used to traverse the tensor. We use the standard output operator for Tensor6 to print each page in turn.

Definition at line 1970 of file matpackVII.cc.

References ConstTensor7View::begin(), and ConstTensor7View::end().

void transform	(	Tensor7View	y,
		double(&)(double)	my_func,
		ConstTensor7View	x
	)

A generic transform function for tensors, which can be used to implement mathematical functions operating on all elements.

Because we have this, we don't need explicit functions like sqrt for tensors! The type of the mathematical function is double (&my_func)(double). Numeric would not work here, since mathematical functions for float do not exist!

transform(y,sin,x) computes y = sin(x)

The two views may be the same one, in which case the conversion happens in place.

Parameters:

	y	Output: The results of the function acting on each element of x.
	my_func	A function (e.g., sqrt).
	x	A tensor.

Definition at line 5419 of file matpackVII.cc.

References Tensor7View::begin(), ConstTensor7View::begin(), ConstTensor7View::end(), ConstTensor7View::nbooks(), ConstTensor7View::ncols(), ConstTensor7View::nlibraries(), ConstTensor7View::npages(), ConstTensor7View::nrows(), ConstTensor7View::nshelves(), ConstTensor7View::nvitrines(), and transform().