10-11-2006, 04:37 AM

Hi

I'm playing around with various CAS implementations and found that it's no so easy to find the simplification for the well known infinite sum:

ooIs this possible with the 49g+ or any other Erable based CAS?

----'

\ x^{k}

| ---

/ k!

----'

k=0

The Voyage 200 does not do it, while Derive on the PC knows the correct result.

Marcus