How to plot a summation?

[Tim Wessman]

(09-25-2015 12:46 PM)RodrigoPontes Wrote:  Hi everyone! I'm trying to plot a summation on my HP Prime, but I can't do it. Even something as simple as Σ(N,N,0,X) produces no output (it should produce the summation of 0 to X). How should it be done? Thanks!

You actually DID make a plot. If you look in your plot screen, you will see that as you trace to an integer value it has correctly calculated your value. However, since all the values in between are not defined you get. Try typing 10 to jump to x=10 and you'll see your value traced at the bottom.

The points aren't connected though as you've seen. Probably need to improve stuff with respect to sums...