sympy/sympy — pull request #7473 by comer (2014-05-06 19:20:11+00:00)
Title: Finite Difference Derivatives Tutorial

This is work in progress to write some tutorial material for devising finite difference approximations to derivatives. I will end up with at least two major sections: the first is a direct way of forming finite difference derivatives using SymPy's matrices and linear equation solvers. While the first method is not the most efficient, I think it is pretty straightforward and serves as a basic introduction. The second major section will cover the basics of using Bjorn Dahlgren's recently merged finite difference work. It is quite efficient and I will show how to do the same things as in the first section using finite_diff_weights().

I have run bin/stripwhitespace on the file finite_diff_derivatives.rst.