Hi all, How do I integrate the following matrix elements in an efficient manner with scipy c_{j,k} = \int\limits_0^\pi \varepsilon a(x) \sin (k x) \sin (j x) dx (Latex notation) j, k = 1, ..., 9 \varepsilon = 0.1 a(x) = x^2 (\pi-x)^2 - \delta, \delta = 201.0 Thanks in advance. Nils