ex06l_sparse_matrix_algebra_add.cpp

 
#include <iostream>
#include <cla3p/sparse.hpp>
#include <cla3p/algebra.hpp>
 
int main()
{
    cla3p::coo::RdMatrix Acoo(5, 5);
    cla3p::coo::RdMatrix Bcoo(5, 5);
 
    Acoo.insert(0,0,1.0);
    Acoo.insert(1,1,2.0);
    Acoo.insert(2,1,3.0);
    Acoo.insert(1,3,4.0);
    Acoo.insert(0,0,5.0);
 
    Bcoo.insert(0,0,-1.3);
    Bcoo.insert(1,2, 2.2);
    Bcoo.insert(2,1,-3.1);
    Bcoo.insert(2,4, 4.6);
    Bcoo.insert(1,1,-5.7);
 
    cla3p::csc::RdMatrix A = Acoo.toCsc();
    cla3p::csc::RdMatrix B = Bcoo.toCsc();
 
    std::cout << A.info("A") << A << "\n";
    std::cout << B.info("B") << B << "\n";
 
    /*
     * Perform the operation (A + 2 * B) using operators and the add function respectively
     */
    cla3p::csc::RdMatrix C1 = 3. * A + 2. * B;
    std::cout << "C1:\n" << C1 << "\n";
 
    cla3p::csc::RdMatrix C2 = cla3p::ops::add(3., A, 2., B);
    std::cout << "C2:\n" << C2 << "\n";
 
    /*
     * Perform the operation (Cx += 3 * A) using operators and the update function respectively
     */
    C1 += 3. * A;
    std::cout << "C1:\n" << C1 << "\n";
 
    cla3p::ops::update(3., B, C2);
    std::cout << "C2:\n" << C2 << "\n";
 
    return 0;
}