# Homework Help: Polar coordinates

1. Sep 18, 2009

### jaejoon89

What is e^(-r/a) in spherical polar coordinates, and what are the bounds for the integrals?

(I need to know to norm a wave fxn given as e^(-r/a) in 3 dimensions.)

2. Sep 18, 2009

### Dick

e^(-r/a) is already expressed in spherical polar coordinates. And the integral is over all of three dimensional space. You should be able to look up the definition and range of these in your book - there are at least two different conventions. If it doesn't specify a particular one, use any one. Like here http://mathworld.wolfram.com/SphericalCoordinates.html They will all give the same answer.