byuimpact/numerical_computing — pull request #729 by joshualy (2014-12-10 13:32:32+00:00)
Title: several new labs for Vol4b

Split the old Poisson equation lab into a finite difference method lab and a lab for the 2d Poisson equation. More work to do on the Poisson 2d lab. Revised the pseudospectral lab, and added a lab on the rivercrossing problem.