Question

I have 2 functions, in the first one I generate a bidimensional array and in the second one I define an array minus the last line and column. However it does not work. The code is as follows:

function calcDet () {   
    var A = [];     //generates the array
    for (var i = 0; i < k; i++) {
        A[i] = [];
        for (var j = 0; j < k; j++) {   
            var id = "A" + (i + 1) + (j + 1);                   
            A[i][j] =  parseFloat(document.getElementById(id).value);               
        }
     }   
     return (A); 
}
function returnDet() {            
    var s;
    var A = calcDet();
    var smaller=[];                
    for (var i=0;i<k-1;i++) {
        smaller[i]=A[i]             
        for (var j=0;j<k-1;j++) {
            smaller[i][j]=A[i][j];
        }
    }
    alert (smaller);
}

Answer 1

Your code has undefined variables:
“k” seems to appear out of nowhere in both functions

Line
var id = “A” + (i + 1) + (j + 1);
will generate identical id for (some) different variations of i and j ([i = 11 and j = 1] == [i = 1 and j = 11]) that may be a cause of further errors

And it is always useful if you mention the error that you are getting – I would expect that your scripts would not run at all as they are…