I was using a problem from the OPL/NPL
TMPL]/Library/Rochester/setAlgebra35SystemMatrices/solve_3x3.pg
a student got a divide by zero using seed 368. I can duplicate this. So I just changed his seed and started looking at the code. I don't want to rewrite the code. I checked and this problem is still in the OPL. I did a google search to see if there wasa more recent version and found a similar problem in github
https://raw.githubusercontent.com/openwebwork/webwork-open-problem-library/master/OpenProblemLibrary/Rochester/setAlgebra35SystemMatrices/solve_3x3.pg
How do I tell which is more recent? Can the OPL problem be fixed by somebody at UofR? Should I just hope the github version is OK?
thanks
You can check more information, including the last modification date through the "regular" github link
https://github.com/openwebwork/webwork-open-problem-library/tree/master/OpenProblemLibrary/Rochester/setAlgebra35SystemMatrices
The particular problem solve_3x3.pg was fixed 2 months ago, but you would have to check if the bug was the one you found, or another one.
Some of the bugs are fixed the same day, some others take three months.