x Theta x or a

[tim_crouse]

Can someone clear this up for me:

When entering equations into the solver both in CAS and No-CAS mode I seem to be getting only "a" when I press the x theta key.

I know there are times when the key provides an "x" when it is pressed.

When should I expect an "a" and when should I expect to see an "x" when x Theta key is pressed?

Thanks in Advance
-Tim C.