error_norms

error_norms, a FreeFem++ code which computes L2 and H1 error norms of a finite element approximation, and also shows how to project the exact solution onto the finite element space and plot it.

Licensing:

The computer code and data files described and made available on this web page are distributed under the MIT license

Reference:

• Frederic Hecht,
  New development in FreeFem++,
  Journal of Numerical Mathematics,
  Volume 20, Number 3-4, 2012, pages 251-265.

Source Code:

• error_norms.edp, the FreeFem++ script;
• error_norms.sh, runs all the tests.
• error_norms.txt, the output file;

• mesh.png, an image of the mesh.
• approximate.png, an image of the approximate solution.
• exact.png, an image of the exact solution.