gctl_tutorials/examples/spmat_ex5.cpp

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2024-09-10 20:19:20 +08:00
/********************************************************
*
*
*
*
*
*
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "gctl/core.h"
int main(int argc, char const *argv[])
{
gctl::_2d_vector A(10);
for (int i = 0; i < 10; i++)
{
A[i].resize(10, 0.0);
}
A[3][3] = 1.3;
A[5][6] = 4.6;
A[8][1] = 2.8;
A[2][3] = 7.2;
A[5][9] = 2.2;
A[2][9] = 5.4;
A[7][4] = 8.5;
A[0][4] = 0.0;
A[7][6] = 0.0;
gctl::spmat<double> M(10, 10, 0.0);
M.set_2d_vector(A, 1e-20);
M.show_matrix();
M.show_list();
std::cout << "##########" << std::endl;
M.show_list(gctl::ColMajor, ' ');
gctl::spmat<double> N(M);
N.show_matrix();
return 0;
}