Rank: 54091 based on 0 downloads (last 30 days) and 0 file submitted


University of Hawaii

Personal Profile:

Sr. Telescope Engineer for the Pan-STARRS project.


Watch this Author's files


Comments and Ratings by Jeff
Updated File Comments Rating
22 Jan 2010 Zernike polynomials Zernike polynomials and functions (orthogonal basis on the unit circle). Author: Paul Fricker

Paul, Thanks very much for this code. It is very much appreciated.

I think, however, that you have a bug in how you are normalizing your Zernike polynomials. Noll's paper shows that for terms with m=0 the normalization term should be (n+1)**0.5 and for terms with m!=0 the normalization term should be (2*(n+1))**0.5. In the routine zernpol.m you are normalizing all terms (including those with m=0) by (2*(n+1))**0.5.

Perhaps you have already fixed this? I have just downloaded it on 1-21-10 from this site. The creation date for the file I'm looking at is on Nov 13, 2006 12:56:48 PM.

Contact us