Finding position of an element in a two-dimensional array?

Question

Well simple question here (maybe not a simple answer?)

Say I have a two dimensional array

[0] [1] [2]
[3] [4] [5]
[6] [7] [8]

Now s

Answer 1

I'd say something like this:

public static Tuple CoordinatesOf(this T[,] matrix, T value)
{
    int w = matrix.GetLength(0); // width
    int h = matrix.GetLength(1); // height

    for (int x = 0; x < w; ++x)
    {
        for (int y = 0; y < h; ++y)
        {
            if (matrix[x, y].Equals(value))
                return Tuple.Create(x, y);
        }
    }

    return Tuple.Create(-1, -1);
}