This example is ready for the write-up.  Changes: implement energy monitor with option -heat_monitor as supplement to -ts_monitor; k->D rename for thermal diffusivity; new default grid of 4x3 points (but fails on -ts_fd_color); change maxsteps to allow a lot.
This example is ready for the write-up.  Changes: implement energy monitor with option -heat_monitor as supplement to -ts_monitor; k->D rename for thermal diffusivity; new default grid of 4x3 points (but fails on -ts_fd_color); change maxsteps to allow a lot.

bueler/p4pdes,bueler/p4pdes,bueler/p4pdes,bueler/p4pdes