specmat.cpp File Reference

Implementation of special vectors and matrices. More...

#include <itpp/base/specmat.h>
#include <itpp/base/math/elem_math.h>
#include <itpp/base/math/log_exp.h>
#include <itpp/base/itcompat.h>
#include <itpp/base/matfunc.h>

Go to the source code of this file.

Namespaces
namespace	itpp
	itpp namespace

Macros
#define	CREATE_SET_FUNS(typef, typem, name, value)
#define	CREATE_EYE_FUN(type, name, zero, one)

Functions
ivec	itpp::find (const bvec &invector)
	Return a integer vector with indicies where bvec == 1.
vec	itpp::impulse (int size)
	Impulse vector.
vec	itpp::linspace (double from, double to, int length=100)
	linspace (works in the same way as the MATLAB version)
vec	itpp::zigzag_space (double t0, double t1, int K=5)
	Zig-zag space function (variation on linspace)
imat	itpp::hadamard (int size)
	Hadamard matrix.
imat	itpp::jacobsthal (int p)
	Jacobsthal matrix.
imat	itpp::conference (int n)
	Conference matrix.
const cmat	itpp::toeplitz (const cvec &c)
	Generate symmetric Toeplitz matrix from vector c (complex valued)
mat	itpp::rotation_matrix (int dim, int plane1, int plane2, double angle)
	Create a rotation matrix that rotates the given plane angle radians. Note that the order of the planes are important!
void	itpp::house (const vec &x, vec &v, double &beta)
	Calcualte the Householder vector.
void	itpp::givens (double a, double b, double &c, double &s)
	Calculate the Givens rotation values.
void	itpp::givens (double a, double b, mat &m)
	Calculate the Givens rotation matrix.
mat	itpp::givens (double a, double b)
	Calculate the Givens rotation matrix.
void	itpp::givens_t (double a, double b, mat &m)
	Calculate the transposed Givens rotation matrix.
mat	itpp::givens_t (double a, double b)
	Calculate the transposed Givens rotation matrix.
template void	itpp::eye (int, mat &)
	Template instantiation of eye.
template void	itpp::eye (int, bmat &)
	Template instantiation of eye.
template void	itpp::eye (int, imat &)
	Template instantiation of eye.
template void	itpp::eye (int, cmat &)
	Template instantiation of eye.
template vec	itpp::linspace_fixed_step (double, double, double)
	Template instantiation of linspace_fixed_step.
template ivec	itpp::linspace_fixed_step (int, int, int)
	Template instantiation of linspace_fixed_step.
template svec	itpp::linspace_fixed_step (short int, short int, short int)
	Template instantiation of linspace_fixed_step.

Detailed Description

Implementation of special vectors and matrices.

Author

Tony Ottosson, Tobias Ringstrom, Pal Frenger, Adam Piatyszek and Erik G. Larsson

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Copyright (C) 1995-2010 (see AUTHORS file for a list of contributors)

This file is part of IT++ - a C++ library of mathematical, signal processing, speech processing, and communications classes and functions.

IT++ is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

IT++ is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with IT++. If not, see http://www.gnu.org/licenses/.

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Definition in file specmat.cpp.

Macro Definition Documentation

#define CREATE_SET_FUNS	(		typef,
			typem,
			name,
			value
	)

Value:

typef name(int size)    \
  {      \
    typef t(size);    \
    t = value;     \
    return t;     \
  }      \
      \
    typem name(int rows, int cols)  \
    {      \
      typem t(rows, cols);   \
      t = value;    \
      return t;     \
    }

#define CREATE_EYE_FUN	(		type,
			name,
			zero,
			one
	)

Value:

type name(int size) {    \
    type t(size,size);    \
    t = zero;     \
    for (int i=0; i<size; i++)   \
      t(i,i) = one;    \
    return t;     \
  }