# Toronto Math Forum

## APM346-2016F => APM346--Lectures => Chapter 8 => Topic started by: Shaghayegh A on November 22, 2016, 01:15:06 PM

Title: HA 10, problem 3c
Post by: Shaghayegh A on November 22, 2016, 01:15:06 PM
Does 3c want us to go through steps a and b in spherical coordinates, or just write u as a function of r, theta, and phi?
Title: Re: HA 10, problem 3c
Post by: Shentao YANG on November 23, 2016, 08:22:53 PM
I think you can just plug in $x=\rho \sin(\phi)\cos(\theta)$, etc and the resulting $u$ will automatically satisfy the laplacian in spherical coordinate.
Title: Re: HA 10, problem 3c
Post by: Victor Ivrii on November 24, 2016, 06:01:44 AM
Shentao is correct.