Math 21 a Math21a, Fall 2000
Course Head: Prof. Clifford H. Taubes
Dini surface: surface of constant negative curvature,
	  Picture by O.Knill (with Mathematica 4.0, Povray 3.1 on Linux),
		 Fall 2000 Math21a

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Dependence of the Curve on the number of Points

F[n_]:=FromCharacterCode[Join[IntegerDigits[n]+48,ToCharacterCode[".gif"]]];
Do[n=3*k; Display[F[1000+k],ParametricPlot3D[{Cos[5t]+Cos[31t]/2,Cos[5t]+Sin[31t]/2,Sin[5t]},{t,0,2Pi},
PlotPoints->n,DisplayFunction->Identity,Boxed->False,Axes->False],"GIF"],{k,100}];

Last update, 10/29/2000