Hi all, I would like to introduce a couple examples of easy & convenient modelling and solving System of Linear Equation (SLE) by FuncDesigner (a python-written tool, BSD license). It doesn't require to construct matrices A and b (Ax = b) by user, they are created automatically. See here for details: http://openopt.org/FuncDesignerDoc#Solving_systems_of_linear_equations Currently the only one solver available is numpy.linalg.solve (LAPACK routine dgesv, dense systems only); I intend to add some more solvers, maybe for sparse matrices as well, in future. Regards, D. -- http://mail.python.org/mailman/listinfo/python-list