Re: ContourPlot Problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg83106] Re: ContourPlot Problem*From*: "Kevin J. McCann" <Kevin.McCann at umbc.edu>*Date*: Sun, 11 Nov 2007 02:57:42 -0500 (EST)*References*: <fh3qip$l1$1@smc.vnet.net> <47357A63.1040807@gmail.com>

Yes, but I actually want to specify the contours, and it won't do it. Kevin Jean-Marc Gulliet wrote: > Kevin J. McCann wrote: > >> I am having a problem with the following code and that is that not >> all of the contours are plotted. >> >> \[Beta]=. >> x=. >> z=. >> V[\[Beta]_,x_,z_]:=1/Sqrt[x^2+z^2]1/Sqrt[1-\[Beta]^2x^2/(x^2+z^2)] >> cntrs=Table[c,{c,0.05,5,0.05}]; >> L=6; >> >> >> ContourPlot[V[0.9,x,z],{x,-L,L},{z,-L,L},Contours->cntrs,FrameLabel->{"x","z"}] >> >> >> >> >> In fact if I set the contours to lie between 4 and 5, say, then no >> contours are plotted. Che pasa? > > Assuming I have correctly understood you, what you want is a hundred > equally-spaced contour lines to be displayed. The following expression > will do that: > > ContourPlot[V[0.9, x, z], {x, -L, L}, {z, -L, L}, Contours -> 100, > FrameLabel -> {"x", "z"}] > > Regards, -- Kevin J. McCann Research Associate Professor JCET/Physics University of Maryland, Baltimore County (UMBC) 1000 Hilltop Circle Baltimore, MD 21250