/sci/ - Science & Math

Need some class advice. I'm planing on taking Nonlinear Dynamics and Chaos, Intro to Quantum Mechanics, Mathematical Physics 2, and a graduate level Calculus of Variations class next quarter. Is this too much? Or should I exchange the calculus of variations for some general ed requirement class?

Hello /sci/, I have a question. My teacher said that the Sn for a geometric (1 - r^(n+1))/(1-r), while my book says Sn = (a*(1-r)^n)/(1-r) where a is the starting value. Are these the same? Or am I confusing two different equations? Or is one of these wrong? Thank you /sci/