[Maple8]Trouble with entering expression.
 

Is this type of expression possible in Maple 8 (or any Maple for that matter)?

http://img17.paintedover.com/uploads/17/maple8.gif

I want to be able to enter the left side as a function, and have Maple know that it is meant to be the right side. [n_m,m=1..M] is like a sequence of indices, but is not generated until the product index is incremented. Any ideas?

What's Maple8? I've not heard of it before?

Maple is not really a programming language, but rather a program for performing symbolic mathematics, sort of like matlab being for data manipulation. It has a language, like matlab, and you can write loops structures, functions and procedures, etc.

What I want to do above seems very much a formal manipulation to make the expression look tighter, so I'm not sure if Maple can actually understand such an expression.