Hi, I am learning Numpy and using it for a course project. Suppose x = [0, 1, 2, 3, 4], I know that x[0:2] would give [0,1], and x[-1] give [4], is there a way that I can get [4,0,1]. I try x[-1:2], but it returns an empty array.
I am doing convolution (e.g. convolve [0, 1, 2, 3, 4] with [1,-2,1]) with wrap-around boundary condition, so sometimes the indices would wrap around the boundaries, and sometimes not. I would like to find a generic expression for both cases. -- http://mail.python.org/mailman/listinfo/python-list
