numpy.diff — NumPy v1.11 Manual (original) (raw)

x = np.array([1, 2, 4, 7, 0]) np.diff(x) array([ 1, 2, 3, -7]) np.diff(x, n=2) array([ 1, 1, -10])

x = np.array([[1, 3, 6, 10], [0, 5, 6, 8]]) np.diff(x) array([[2, 3, 4], [5, 1, 2]]) np.diff(x, axis=0) array([[-1, 2, 0, -2]])