[LON-CAPA-users] drag math
Tue, 21 Oct 2008 22:30:58 +0200
H.K. Ng wrote:
> I am working on some formula/math response problems using the cas
> function but had a hard time getting drag math to work properly. Here
> are some of the issues.
> 1. On a new window, it doesn't seem to let me type in anything until I
> click on one of the icons. This seems rather backward.
I guess you are not supposed to type in something except for maybe
alphanumerics. I guess, one is suppossed to DRAG things.
> 2. It seems to rearrange an expression in a strange way. For example, if
> I type v^2+2g(a-b), it spits back (a-b)v^2+2.g. It does the same thing
> if I first enter the expression in the answer box and then click on the
> pencil icon.
Yes, I can confirm this. Seems to be a bug of dragmath.
Entering v^2+2*g*(a+-(b)) is fine, though
> Has anyone has similar experience with drag math? Also, has anyone use
> drag math in a course? What is the feedback from the students like?
I do, but haven't heard of anything. Could be that my students don't use it.
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