I'm not sure why, when I enter a formula in a forum post, it later shows up as blank. Maybe it interpreted "<" and ">" as HTML. Sorry about that. Anyway, here is what the student typed:
<-3.14sin(3.41t), 3,14cos(3.14t), 5>
bug in math objects?
This forum has a limit to the number of forum postings you can make in a given time period - this is currently set at 5 posting(s) in 1 day