I'm doing a question on a 3D isotropic harmonic oscillator. At one point I need to find write the radial component of del^2.(adsbygoogle = window.adsbygoogle || []).push({});

Lecturer has written

[tex]

\frac{1}{r^{2}} \frac{d}{dr} \left( r^{2} \frac{d}{dr} \right)

[/tex]

where the del^2 used to be in the set of equations.

Am I correct in saying the radial part of in spherical polar coordinates is just dr. Then del^2 would be dr^2? Well I'm not?

I had a look at http://hyperphysics.phy-astr.gsu.edu/hbase/sphc.html but it didn't explain anything more for me.

PS. I asked this question earlier but internet broke, (thanks virgin media), and I don't understand the answer given... https://www.physicsforums.com/showthread.php?p=2006618#post2006618

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Radial component of del^2 in spherical coordinates? (again)

**Physics Forums | Science Articles, Homework Help, Discussion**