Question

afternoon all. Iv’e come across some mathematical problems that im not too good at. does anyone know how to calculate the ratio for Height against width?

Regards Phil

Answer 1

Here is a simple function that should give you the aspect ratio (simplified and in javascript)

function getAspectRatio(w, h)
    {
        var rem;
        var newW = w;
        var newH = h;

        while (h != 0)
        {
            rem = w % h;
            w = h;
            h = rem;
        }

        newH = newH / w;
        newW = newW / w;

        alert("Aspect Ratio: " + newW + ":" + newH);
    }

getAspectRatio(800,600); results in 4:3.

Hope this helps

G

EDIT: I forgot to mention, it calculates the gcd of the two numbers and does not check for division by zero, so you might want to add that. 🙂