TRIGEXPAND FUNCTION

[rprosperi]

Generally speaking, uppercase Fn names are HOME mode functions and lowercase Fn names are CAS functions. Part of the reason for the difference is so that one may call functions from one mode, while in the other mode.

I've not a clue on earth if that is relevant for this particular problem, but it's an annoying side-effect of the 2 distinct mode, and could be causing some of these issues.

Seems to me it would have been a WHOLE let better if the Prime simply tagged the functions when calling from the 'other' mode, such as:

HOME mode: X := CAS.SIN(X)
CAS mode: x:= home.sin(x)
etc.
which would have been unambiguous.

But no doubt there were good reasons this could not be done.

Tim?
Cyrille?