Recent content by jakePHYS

Thnx :biggrin: This has been vexing me for 3 1/2 weeks now! THANK YOU! :biggrin:

1. Problem: int[(x^2)*(sin^2 (n*Pi*x/a)] from 0 to a 3. Physics teacher tells me to just look it up. I've wrestled with every table of integrals I can find (web, library, my books), but I'm still hung up.