[pstricks] drawing implicit (polar) plot
Herbert Voss
Herbert.Voss at alumni.TU-Berlin.DE
Tue Oct 5 19:39:39 CEST 2004
Arnaud Schmittbuhl wrote:
> I don't know how to draw an implicit polar plot. I'm interesting in
> plotting this one, useful in fluid mechanics,
>
> (r^2 -1/r)sin^2\theta = 1
there is in general no possibility to handle implicit defined
equations with psplot.
But it is the same as the special cubic equation
r^3 - r/sin^2\theta -1 = 0
which could be solved with the formula of Cardano.
Do you have any website where I can see the graphic
of this equation?
Herbert
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ftp://ftp.dante.de/tex-archive/info/math/voss/Voss-Mathmode.pdf
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http://www.tex.ac.uk/cgi-bin/texfaq2html?introduction=yes
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