mat2: nml::mat2& operator+=(const nml::mat2& other)

Add a mat2 to the current mat2.

The sum between two mat2 is calculated this way:

\(\begin{bmatrix} x.x & y.x \\ x.y & y.y \end{bmatrix} + \begin{bmatrix} other.x.x & other.y.x \\ other.x.y & other.y.y \end{bmatrix} = \begin{bmatrix} x.x + other.x.x & y.x + other.y.x \\ x.y + other.x.y & y.y + other.y.y \end{bmatrix}\)

Example

#include "include/mat2.h"
#include <iostream>

int main() {
        nml::mat2 a(1.0f, 2.0f, 3.0f, 4.0f);
        nml::mat2 b(3.0f, 4.0f, 5.0f, 6.0f);
        a += b;
        std::cout << nml::to_string(a) << std::endl;

        return 0;
}

Result:

[[4.000000, 6.000000], [8.000000, 10.000000]]