The program laplacian is provided in the directory tests of GetFEM++ distribution. This program computes the solution of the Poisson problem in a parellepiped domain in any dimension with various finite element methods and elements. This program can be used as a model to build application programs. It is built when a make check is done on the root directory of GetFEM++ (or just with cd tests; make laplacian).
Once the program is compiled you can test it executing the command:
$ cd tests
$ ./laplacian laplacian.param
The file laplacian.param is the parameter file. You can edit it and test
various situation. The program prints the
and
error from
an exact solution.
The program elastostatic is built in a same way and compute the solution of linear elasticity problem. Many more examples can be found in the tests directory.