I'm trying to make a question using STACK that tests basic metric unit conversions. To that end, I'm pulling random units from a list to go into the problem itself. The entry in the list for μm is causing problems in the display of the question. The entry in the list is
l1: [cm,mm,km,\mu*m]
This gives me things like this in the display when it gets used:
Any suggestions?
Joshua,
Sorry about this confusion. I think (without testing this....) that the problem is caused by the \mu in your list.
The prefix for "micro" is just "u". See https://github.com/maths/moodle-qtype_stack/blob/master/stack/maxima/stackunits.mac#L32
So, your list should be
l1:[cm,mm,km,um]
See also note (5) in https://github.com/maths/moodle-qtype_stack/blob/master/doc/en/Authoring/Units.md
If this doesn't fix the problem, please let me know.
Chris
That works fine for students entering "um" as their units. They do indeed get interpreted and displayed as μm.
However, in the question display that doesn't seem to work. Instead I get just "um" displayed:
That's better than where I was before but still not ideal.
Sorry Joshua,
I should have thought more carefully about this answer. You need to add the following to the start of your question variables.
stack_unit_si_declare(true)
This is documented under the "units", but could have been more prominent.
Chris
Aha. That worked perfectly.
I see where that is in the documentation now. From a usability standpoint, could that function just be automatically called whenever the Unit input type is used?