Unsortable gapfill

[Martin Jones]

As the system has requested that I report this bug, please see screenshot below.

It's not surprising that the sorting feature has not worked, because one of the answers has a unit and the other does not. Perhaps it should just not try to sort in this case? Or better still, try marking the answers in every possible permutation and output the best mark?

[Christian Lawson-Perfect]

As ever, please can you give me a link to this question so I can investigate?

--
You received this message because you are subscribed to the Google Groups "Numbas Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to numbas-users...@googlegroups.com.
To view this discussion on the web, visit https://groups.google.com/d/msgid/numbas-users/4284d586-5b02-48bb-aaae-27281b42d08en%40googlegroups.com.

[Martin Jones]

Sorry :)

https://numbas.mathcentre.ac.uk/question/118987/differentiation-application-for-exam/

Live exam, so can't publish for everyone to see.

[Christian Lawson-Perfect]

Thanks!

The problem was that it was trying to compare the two quantities to work out which should go first, and I didn't realise that it throws an error when you compare two incompatible quantities. I've changed it to return 0 instead, and the question now works.

To view this discussion on the web, visit https://groups.google.com/d/msgid/numbas-users/5de74450-67c4-49af-881a-fc098deb7aa1n%40googlegroups.com.