given a (2D) array *a*, and a smaller (2D) array *b*, how can you add the smaller array to the bigger array at some offset in numpy?

>>> a = zeros((4,4), dtype=int) >>> a array([[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]) >>> b = ones((2,2), dtype=int) >>> b array([[1, 1], [1, 1]]) >>> a[1:3,1:3] += b >>> a array([[0, 0, 0, 0], [0, 1, 1, 0], [0, 1, 1, 0], [0, 0, 0, 0]]) |