FEM2D_PACK, a C++ library which implements the finite element method (FEM).
The emphasis is on simplicity and clarity. Only the 2D case is handled, with a choice of low order triangular and quadrilateral elements.
A few routines are included for computing a "sphere grid", that is, a finite element mesh on the surface of a sphere.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
FEM2D_PACK is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
FEM1D_PACK, a C++ library which contains utilities for 1D finite element calculations.
FEM2D, a data directory which contains examples of 2D FEM files, three text files that describe a 2D finite element geometry;
FEM2D_HEAT, a C++ program which solves the time dependent heat equation on the unit square.
FEM2D_POISSON, a C++ program which solves Poisson's equation on a square, using the finite element method.
FEM2D_POISSON_RECTANGLE_LINEAR, a C++ program which solves the 2D Poisson equation on a rectangle, using the finite element method, and piecewise linear triangular elements.
FEM2D_SAMPLE, a C++ library which evaluates a finite element function defined on an order 3 or order 6 triangulation.