1

Question

10. Write a JavaScript function which returns the n rows by n columns identity matrix.

Answer 1

is in put the number n?

Answer 2

bro whats input?

Answer 3

function identityMatrix(n) {
var a = [];
for(i=0;i<n;i++) {
for(j=0;j<n;j++) {
a[i][j] = (i == j) ? 1 : 0;
}
}
return a;
}

Answer 4

var n = 4;

var newArr = function () {
var result, l, i;
if(arguments.length > 0) {
l = [].slice.call(arguments, 0, 1)[0];

result = new Array(l);
for(i = 0; i < l; i++) {
result[i] = newArr.apply(null, [].slice.call(arguments, 1));
}
} else {
return 0;
}
return result;
};

function matIdentity(n) {
var matrix = newArr(n,n)

for (i = 0; i < n; ++i) {
matrix[i][i] = 1;
}

return matrix;
}

alert(matIdentity(n))

Answer 5

10. Write a JavaScript function which returns the n rows by n columns identity matrix.

Answer 6

n