Mandatory assignments

All your assignments should now have been corrected. Those of you that did not pass will get a second chance with deadline Friday, May 15th, 23:59. Because there will be no group on Thursday, questions can be sent by email, or we can plan a short meeting for help.

There were a lot of different numbers for the assignment. The correct numbers will be posted on GitHub under oblig2, here

Python-programmers should note the difference between
u_old = u_new

and

u_old = numpy.copy(u_new)

when working with numpy arrays. The latter is preferred.