08-11-2004, 12:27 AM
When I enter
number
sigma i^-x
i=start pt
EVAL, I get "?" as a result.
However, if I input
number
sigma 1/i^x
i=start pt
EVAL, I get a result.
Is there a flag I need to clear/set to get a result out of the first expression, or is part of HP49 syntax?
Thanks.