Recent content by rainbojedi

Thank you, your were both very right. I had immediately missed the product rule. Thanks for the help. :redface:

for my Schrodinger equation I need the second derivative of this: Axe^(-x^2/ L^2) I think that I am missing some chain rule or something. The solutions say: ( 4Ax^3-6AxL^2)(1/L^4)e^(-x^2/ L^2) I only got -2Axe^(-x^2/L^2) for the 1st deriv. and 4Axe^(-x^2/L^2) and I still can't...