poisson_adaptive,
a FreeFem_++ code which
repeatedly solves the Poisson equation in the L-shaped region,
adaptively refining the mesh based on an error estimator;
Licensing:
The information on this web page is 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.