Find the center!

*To*: mathgroup at christensen.cybernetics.net*Subject*: [mg1120] Find the center!*From*: Gottfried Mayer-Kress <gmk at pegasos.ccsr.uiuc.edu>*Date*: Mon, 15 May 1995 02:01:46 -0400

O.k. here is the problem: There are a bunch of points in 3-space and they are supposed to be scattered around the surface of a sphere. You want to find the center of the sphere and the radius. NB: The data are noisy (about 2% of the radius) and only cover a patch on the sphere. I think I have a reasonable solution, but maybe someone knows of some real elegant method? Thanks, --- Gottfried Mayer-Kress Center for Complex Systems Research, Beckman Institute, Physics Dept. UIUC 405 N Mathews, Urbana, Il 61801,gmk at pegasos.ccsr.uiuc.edu, gmk at igc.apc.org, gmk at santafe.edu, (217)-244-5877(voice),x5493(fax1),x8371(fax2), x1994 (msg) URLs: http://www.ccsr.uiuc.edu/~gmk/, ftp://ftp.santafe.edu/pub/gmk