Hi! Is there a method for a 2 dimnesional convolution ? It could be done by fft inverse_fft2d(fft2d(mask) * fft2d(two_d_array)) but only for square matrix (mask and two_d_array). Thanks ! Cheers, Dirk Engelmann _______________ MATRIX-SIG - SIG on Matrix Math for Python send messages to: matrix-sig@python.org administrivia to: matrix-sig-request@python.org _______________