Question

How to display the upper triangular of a matrix in Node.js

Answer 1

function printUpperTriangular(matrix) {
    const rows = matrix.length;
    const cols = matrix[0].length;
 
    for (let i = 0; i < rows; i++) {
        let s = "";
        for (let j = 0; j < cols; j++) {
            if (i > j) {
                s += "0" + " "
            }
            else {
                s += matrix[i][j] + " ";
            }
        }
        console.log(s);
    }
}
 
      
const matrix = [ [7, 6, 2],
                 [9, 4, 3],
                 [1, 5, 8] ];
          
printUpperTriangular(matrix);
 
   
     
     
/*
run:
     
7 6 2 
0 4 3 
0 0 8 
     
*/

 

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