HP 50g - summation

[Simone Cerica]

(06-03-2016 05:20 PM)Claudio L. Wrote:  'XSUM(5,X)' EVAL will produce what you want. It's limited to single-letter identifiers (by using TAIL HEAD, this can be improved).
Another improvement could be a start value for N, but you get the idea.

It was just what I wanted,

grazie Claudio.