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diff scripts/plot/contour.m @ 7331:3ed85de5922c

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[project @ 2007-12-21 17:40:20 by jwe]
author jwe
date Fri, 21 Dec 2007 17:41:35 +0000
parents 9af6f0a214ee
children ac7f334d9652
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line diff
--- a/scripts/plot/contour.m
+++ b/scripts/plot/contour.m
@@ -76,7 +76,7 @@
 %! contour (x, y, z);
 
 %!demo
-%! [th, r] = meshgrid (linspace (0, 2*pi, 64), 0:.05:0.9);
-%! [X, Y] = pol2cart (th, r);
-%! f = ((X + i*Y).^4 - 1).^(1/4);
-%! contour(X, Y, abs(f), 16)
+%! [theta, r] = meshgrid (linspace (0, 2*pi, 64), linspace(0,1,64));
+%! [X, Y] = pol2cart (theta, r);
+%! Z = sin(2*theta).*(1-r);
+%! contour(X, Y, abs(Z), 10)