References

  1. L. N. Trefethen. Trefethen's index cards - Forty years of notes about People, Words and Mathematics, World Scientific, 2011.
  2. H. P. Langtangen. Finite Difference Computing with Exponential Decay Models, Springer, 2015, http://tinyurl.com/nclmcng/web.
  3. R. Rannacher. Finite element solution of diffusion problems with irregular data, Numerische Mathematik, 43, pp. 309-327, 1984.
  4. H. P. Langtangen. Scaling of Differential Equations, 2015, http://tinyurl.com/qfjgxmf/web.