http://rosettacode.org/wiki/Bilinear_interpolation#J shows how to generate shape functions for isoparametric elements. This is a piece of an FEA code.
Other contributions you may wish to clean, clarify, and rewrite, http://rosettacode.org/wiki/Sorting_algorithms/Patience_sort#J http://rosettacode.org/wiki/Execute_SNUSP#J ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
