64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/********************************************************
|
|
* ██████╗ ██████╗████████╗██╗
|
|
* ██╔════╝ ██╔════╝╚══██╔══╝██║
|
|
* ██║ ███╗██║ ██║ ██║
|
|
* ██║ ██║██║ ██║ ██║
|
|
* ╚██████╔╝╚██████╗ ██║ ███████╗
|
|
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
|
|
* 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 <iostream>
|
|
#include <iomanip>
|
|
#include "../lib/optimization.h"
|
|
#include "gctl/core.h"
|
|
#include "gctl/algorithms.h"
|
|
|
|
using std::cout;
|
|
using std::endl;
|
|
using std::setw;
|
|
|
|
int main(int argc, char const *argv[])
|
|
{
|
|
gctl::matrix<double> A(4, 3);
|
|
for (int i = 0; i < A.row_size(); i++)
|
|
{
|
|
for (int j = 0; j < A.col_size(); j++)
|
|
{
|
|
A[i][j] = 3*(i+1) + j - 2;
|
|
}
|
|
}
|
|
A[3][1] = 1;
|
|
|
|
gctl::array<double> x(3), y(3), m(3);
|
|
x.random_float(-1.0, 1.0, gctl::RdUniform, 452);
|
|
gctl::matvec(y, A, x);
|
|
|
|
cout<<"A(" << A.row_size() << ", " << A.col_size() << ") = " <<endl;
|
|
A.show();
|
|
|
|
gctl::svd svdd;
|
|
svdd.decompose(A);
|
|
svdd.solve(y, m);
|
|
|
|
cout << "x = "; x.show();
|
|
cout << "m = "; m.show();
|
|
return 0;
|
|
} |