# [LON-CAPA-users] units in submission bug?

**Gerd Kortemeyer
**
lon-capa-users@mail.lon-capa.org

*Tue, 6 Jan 2009 17:35:07 -0500*

Hi,
On Jan 6, 2009, at 4:00 PM, William Paddock wrote:
>* One of my students just discovered that if you type a letter before
*>* the number in a numerical response, any required units will be
*>* ignored.
*>*
*>* For example...
*>* Correct answer is 34.5 g
*>*
*>* 34.5 returns "units required"
*>*
*>* 34.5 kg returns "incorrect"
*>*
*>* and so on... as expected... however...
*>*
*>* s34.5 returns correct.
*>*
*>* And I've tried it in my own versions of the problems several times.
*>* I've tried this on several questions, with several different
*>* letters, and different required units, and seems to work. The
*>* numerical part of the answer must be the same as the value CAPA has
*>* as the correct answer, but a student wouldn't need to know the
*>* correct units. Is this a bug? Has anyone else observed this?
*
Certainly looks like a bug to me. I just tried it out, and indeed, any
initial letter in the answer seems to substitute for the unit that the
instructor entered :-(
http://bugs.lon-capa.org/show_bug.cgi?id=5866
- at least, the students need to guess the unit that the instructor
gave and calculate the correct numerical result in that unit.
- Gerd.