Gaussian integration for the HP-11C/15C

[Marcio]

Good morning gentlemen,

I figured out what the problem is, but haven't yet identified what is causing it. The code will run fine the first time but will fail afterwards if I don't clear the registers.

Gerson, can you get the same answer twice?

I should let you know that I am using the app, not the physical 15C. The app is much faster but won't always let you do basic things like integration (which I use regularly) and root finding without crashing and erasing memory. Come on, HP!