Numerical Methods Library for OCTAVE

A, BC, D rectangle (A,B)x(C,D) where the solution is computed.NX X equispaced grid of NX intervals.NY Y equispaced grid of NY intervals.FUNBOUND boundary condition.UEX exact solution.ReturnsU solution array.X equispaced grid of NX intervals.Y equispaced grid of NY intervals.ERROR maximum nodal error ERROR with respect to the exact solution UEX.Figure 4: Solution of the Poisson equation with x ∈ [0, 1] and t ∈ [0, 1].31