Question

How to subtract two matrices (matrix) in Node.js

Answer 1

const matrix1 = [[10, 20, 30, 40], [5, 6, 7, 8], [9, 7, 6, 3]];
const matrix2 = [[1, 1, 1, 1], [2, 2, 2, 2], [3, 3, 3, 3]];
const sub = [[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]];
        
const rows = matrix1.length;
const cols = matrix1[0].length;

for (let i = 0; i < rows; i++) {
    for (let j = 0; j < cols; j++) {
        sub[i][j] = matrix1[i][j] - matrix2[i][j];
    }
}

for (let i = 0; i < rows; i++) {
    for (let j = 0; j < cols; j++) {
        console.log(sub[i][j]);
    }
    console.log();
}




/*
run:

9
19
29
39

3
4
5
6

6
4
3
0

*/

 

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