fem2d_scalar_display_gpl_test, a MATLAB code which calls fem2d_scalar_display_gpl(), which reads datafiles describing a set of nodes, their triangulation, and the value of a scalar quantity at each node, and creates a graphics file of the corresponding surface plot, which can be displayed by GNUPLOT.
The information on this web page is distributed under the MIT license.
fem2d_scalar_display_gpl, a MATLAB code which reads information about nodes, elements and nodal values for a 2D finite element method (FEM) and creates a GPL file describing a surface plot of U(X,Y), that can be displayed by gnuplot.
ELL is an L-shaped region on which the function U=X^2+Y^2 is defined.
SPIKE is a circular region on which a solution of the Poisson equation forms an off-centered spike.