array2ind

A modification of the built-in sub2ind.

Usage:

ind = array2ind(SIZE, COORDINATES_AS_ARRAY)

Example:

g = magic(5);
ind = array2ind([5 5], [3 2])
g(ind)

returns the same value as if you had called

g(3,2)

Useful for when the coordinates for a matrix element are stored as an array and avoids the current method of:

b = [3 2];
g(b(1), b(2))

While this is suitable for some cases, it's not generalized or adaptable to changing sizes of b and g.