#outer does the same two-input operation between every possible pair of the left-side grid and the right side grid. Multiplication table: produces a grid of size Dim(anyA..., anyB...), where numbers are the results of the operation on every element of A and every element of B. the resulting array can be very big. Don't try this on two pictures (the result will have 6 dimensions) grid B (see below) numop select pattern Combine channelless picture with gamma factors (r, g, b)