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/*!
* \file
* \brief Implementation of operators for vectors and matricies of different
* types
* \author Tony Ottosson
*
* -------------------------------------------------------------------------
*
* 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/>.
*
* -------------------------------------------------------------------------
*/
#include <itpp/base/operators.h>
namespace itpp
{
//----------- Scalar and a ivec -----------------
vec operator+(const double &s, const ivec &v)
{
it_assert_debug(v.size() > 0, "operator+(): Vector of zero length");
vec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s + double(v(i));
}
return temp;
}
vec operator-(const double &s, const ivec &v)
{
it_assert_debug(v.size() > 0, "operator-(): Vector of zero length");
vec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s - double(v(i));
}
return temp;
}
vec operator*(const double &s, const ivec &v)
{
it_assert_debug(v.size() > 0, "operator*(): Vector of zero length");
vec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s * double(v(i));
}
return temp;
}
vec operator/(const double &s, const ivec &v)
{
it_assert_debug(v.size() > 0, "operator/(): Vector of zero length");
vec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s / double(v(i));
}
return temp;
}
vec operator/(const ivec &v, const double &s)
{
it_assert_debug(v.size() > 0, "operator/(): Vector of zero length");
vec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = double(v(i)) / s;
}
return temp;
}
cvec operator+(const std::complex<double> &s, const ivec &v)
{
it_assert_debug(v.size() > 0, "operator+(): Vector of zero length");
cvec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s + std::complex<double>(v(i));
}
return temp;
}
cvec operator-(const std::complex<double> &s, const ivec &v)
{
it_assert_debug(v.size() > 0, "operator-(): Vector of zero length");
cvec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s - std::complex<double>(v(i));
}
return temp;
}
cvec operator*(const std::complex<double> &s, const ivec &v)
{
it_assert_debug(v.size() > 0, "operator*(): Vector of zero length");
cvec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s * std::complex<double>(v(i));
}
return temp;
}
cvec operator/(const std::complex<double> &s, const ivec &v)
{
it_assert_debug(v.size() > 0, "operator/(): Vector of zero length");
cvec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s / std::complex<double>(v(i));
}
return temp;
}
cvec operator/(const ivec &v, const std::complex<double> &s)
{
it_assert_debug(v.size() > 0, "operator/(): Vector of zero length");
cvec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = std::complex<double>(v(i)) / s;
}
return temp;
}
//----------- Scalar and a cvec -----------------
cvec operator+(const double &s, const cvec &v)
{
it_assert_debug(v.size() > 0, "operator+(): Vector of zero length");
cvec temp = v;
for (int i = 0;i < v.size();i++) {
temp(i) += s;
}
return temp;
}
cvec operator-(const double &s, const cvec &v)
{
it_assert_debug(v.size() > 0, "operator-(): Vector of zero length");
cvec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = std::complex<double>((double)s - v(i).real(), -v(i).imag());
}
return temp;
}
cvec operator*(const double &s, const cvec &v)
{
it_assert_debug(v.size() > 0, "operator*(): Vector of zero length");
cvec temp = v;
for (int i = 0;i < v.size();i++) {
temp(i) *= (double)s;
}
return temp;
}
cvec operator/(const cvec &v, const double &s)
{
it_assert_debug(v.size() > 0, "operator/(): Vector of zero length");
cvec temp = v;
for (int i = 0;i < v.size();i++) {
temp(i) /= (double)s;
}
return temp;
}
cvec operator/(const double &s, const cvec &v)
{
it_assert_debug(v.size() > 0, "operator/(): Vector of zero length");
cvec temp(v.length());
for (int i = 0;i < v.size();i++) {
temp(i) = s / v(i);
}
return temp;
}
//----------- Scalar and a cmat -----------------
cmat operator+(const double &s, const cmat &m)
{
it_assert_debug(m.rows() > 0 && m.cols() > 0, "operator+(): Matrix of zero length");
cmat temp = m;
for (int i = 0;i < m._datasize();i++) {
temp._data()[i] += s;
}
return temp;
}
cmat operator-(const double &s, const cmat &m)
{
it_assert_debug(m.rows() > 0 && m.cols() > 0, "operator-(): Matrix of zero length");
cmat temp(m.rows(), m.cols());
for (int i = 0;i < m._datasize();i++) {
temp._data()[i] = std::complex<double>((double)s - m(i).real(), -m(i).imag());
}
return temp;
}
cmat operator*(const double &s, const cmat &m)
{
it_assert_debug(m.rows() > 0 && m.cols() > 0, "operator*(): Matrix of zero length");
cmat temp = m;
for (int i = 0;i < m._datasize();i++) {
temp._data()[i] *= (double)s;
}
return temp;
}
cmat operator*(const std::complex<double> &s, const mat &m)
{
it_assert_debug(m.rows() > 0 && m.cols() > 0, "operator*(): Matrix of zero length");
cmat temp(m.rows(), m.cols());
for (int i = 0;i < m._datasize();i++) {
temp._data()[i] = s * m._data()[i];
}
return temp;
}
cmat operator/(const cmat &m, const double &s)
{
it_assert_debug(m.rows() > 0 && m.cols() > 0, "operator/(): Matrix of zero length");
cmat temp = m;
for (int i = 0;i < m._datasize();i++) {
temp._data()[i] /= (double)s;
}
return temp;
}
//---------------------- between matrix and scalar --------------------
//----------- Multiplication of a scalar and a vec -----------------
cvec operator*(const std::complex<double> &s, const vec &v)
{
cvec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s * std::complex<double>(v(i), 0.0);
}
return temp;
}
cvec operator*(const vec &v, const std::complex<double> &s)
{
cvec temp(v.size());
for (int i = 0;i < v.size();i++) {
temp(i) = s * std::complex<double>(v(i), 0.0);
}
return temp;
}
// ===============================================================================================
// ---------------- Addition of vectors ---------------
vec operator+(const bvec &a, const vec &b)
{
it_assert_debug(a.size() == b.size(), "operator+(): sizes does not match");
vec temp(a.size());
for (int i = 0;i < a.size();i++) {temp(i) = (double)a(i) + b(i);}
return temp;
}
vec operator+(const svec &a, const vec &b)
{
it_assert_debug(a.size() == b.size(), "operator+(): sizes does not match");
vec temp(a.size());
for (int i = 0;i < a.size();i++) {temp(i) = (double)a(i) + b(i);}
return temp;
}
vec operator+(const ivec &a, const vec &b)
{
it_assert_debug(a.size() == b.size(), "operator+(): sizes does not match");
vec temp(a.size());
for (int i = 0;i < a.size();i++) {temp(i) = (double)a(i) + b(i);}
return temp;
}
cvec operator+(const bvec &a, const cvec &b)
{
it_assert_debug(a.size() == b.size(), "operator+(): sizes does not match");
cvec temp = b;
for (int i = 0;i < a.size();i++) {temp(i) += (double)a(i);}
return temp;
}
cvec operator+(const svec &a, const cvec &b)
{
it_assert_debug(a.size() == b.size(), "operator+(): sizes does not match");
cvec temp = b;
for (int i = 0;i < a.size();i++) {temp(i) += (double)a(i);}
return temp;
}
cvec operator+(const ivec &a, const cvec &b)
{
it_assert_debug(a.size() == b.size(), "operator+(): sizes does not match");
cvec temp = b;
for (int i = 0;i < a.size();i++) {temp(i) += (double)a(i);}
return temp;
}
cvec operator+(const vec &a, const cvec &b)
{
it_assert_debug(a.size() == b.size(), "operator+(): sizes don't match");
cvec temp(b);
for (int i = 0; i < a.size(); i++) {
temp(i) += std::complex<double>(a(i), 0.0);
}
return temp;
}
// ---------------- Multiplication of vectors ---------------
double operator*(const bvec &a, const vec &b)
{
it_assert_debug(a.size() == b.size(), "operator*(): sizes does not match");
double temp = 0;
for (int i = 0;i < a.size();i++) {temp += (double)a(i) * b(i);}
return temp;
}
double operator*(const svec &a, const vec &b)
{
it_assert_debug(a.size() == b.size(), "operator*(): sizes does not match");
double temp = 0;
for (int i = 0;i < a.size();i++) {temp += (double)a(i) * b(i);}
return temp;
}
double operator*(const ivec &a, const vec &b)
{
it_assert_debug(a.size() == b.size(), "operator*(): sizes does not match");
double temp = 0;
for (int i = 0;i < a.size();i++) {temp += (double)a(i) * b(i);}
return temp;
}
std::complex<double> operator*(const bvec &a, const cvec &b)
{
it_assert_debug(a.size() == b.size(), "operator*(): sizes does not match");
std::complex<double> temp = 0;
for (int i = 0;i < a.size();i++) {temp += (double)a(i) * b(i);}
return temp;
}
std::complex<double> operator*(const svec &a, const cvec &b)
{
it_assert_debug(a.size() == b.size(), "operator*(): sizes does not match");
std::complex<double> temp = 0;
for (int i = 0;i < a.size();i++) {temp += (double)a(i) * b(i);}
return temp;
}
std::complex<double> operator*(const ivec &a, const cvec &b)
{
it_assert_debug(a.size() == b.size(), "operator*(): sizes does not match");
std::complex<double> temp = 0;
for (int i = 0;i < a.size();i++) {temp += (double)a(i) * b(i);}
return temp;
}
std::complex<double> operator*(const vec &a, const cvec &b)
{
it_assert_debug(a.size() == b.size(), "operator*(): sizes does not match");
std::complex<double> temp = 0;
for (int i = 0;i < a.size();i++) {temp += a(i) * b(i);}
return temp;
}
// ---------------- Addition of matricies ---------------
mat operator+(const bmat &a, const mat &b)
{
it_assert_debug(a.cols() == b.cols() && a.rows() == b.rows(), "operator+(): sizes does not match");
mat temp(b);
for (int i = 0;i < a.rows();i++) {
for (int j = 0;j < a.cols();j++) {
temp(i, j) += (double)a(i, j);
}
}
return temp;
}
mat operator+(const smat &a, const mat &b)
{
it_assert_debug(a.cols() == b.cols() && a.rows() == b.rows(), "operator+(): sizes does not match");
mat temp(b);
for (int i = 0;i < a.rows();i++) {
for (int j = 0;j < a.cols();j++) {
temp(i, j) += (double)a(i, j);
}
}
return temp;
}
mat operator+(const imat &a, const mat &b)
{
it_assert_debug(a.cols() == b.cols() && a.rows() == b.rows(), "operator+(): sizes does not match");
mat temp(b);
for (int i = 0;i < a.rows();i++) {
for (int j = 0;j < a.cols();j++) {
temp(i, j) += (double)a(i, j);
}
}
return temp;
}
// ---------------- Addition of cmat and matrices ---------------
cmat operator+(const bmat &a, const cmat &b)
{
it_assert_debug(a.cols() == b.cols() && a.rows() == b.rows(), "operator+(): sizes does not match");
cmat temp(b);
for (int i = 0;i < a.rows();i++) {
for (int j = 0;j < a.cols();j++) {
temp(i, j) += std::complex<double>(static_cast<double>(a(i, j)), 0.0);
}
}
return temp;
}
cmat operator+(const smat &a, const cmat &b)
{
it_assert_debug(a.cols() == b.cols() && a.rows() == b.rows(), "operator+(): sizes does not match");
cmat temp(b);
for (int i = 0;i < a.rows();i++) {
for (int j = 0;j < a.cols();j++) {
temp(i, j) += (double)a(i, j);
}
}
return temp;
}
cmat operator+(const imat &a, const cmat &b)
{
it_assert_debug(a.cols() == b.cols() && a.rows() == b.rows(), "operator+(): sizes does not match");
cmat temp(b);
for (int i = 0;i < a.rows();i++) {
for (int j = 0;j < a.cols();j++) {
temp(i, j) += std::complex<double>(static_cast<double>(a(i, j)), 0.0);
}
}
return temp;
}
cmat operator+(const mat &a, const cmat &b)
{
it_assert_debug(a.cols() == b.cols() && a.rows() == b.rows(), "operator+(): sizes does not match");
cmat temp(b);
for (int i = 0;i < a.rows();i++) {
for (int j = 0;j < a.cols();j++) {
temp(i, j) += std::complex<double>(static_cast<double>(a(i, j)), 0.0);
}
}
return temp;
}
} // namespace itpp