region

region, a FreeFem++ code which sets up an interesting mesh with four internal boxes where the solution has a jump, and writes the data to files, using the ffmatlib() interface, for subsequent graphics processing by MATLAB or Octave.

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:

• region.edp, the FreeFem++ script;
• region.sh, a BASH script to run the example;
• region.txt, the output file;

• ffmatlib.idp, the ffmatlib include file;

• region_mesh.png
• region_values.png

• region_data.txt
• region.msh, runs all the tests.
• region_vh.txt