[pstricks] implicit plots
Zbigniew Nitecki
zbigniew.nitecki at tufts.edu
Sat May 8 18:49:54 CEST 2010
Thanks, that worked beautifully.
Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155
telephones:
Office (617)627-3843
Dept. (617)627-3234
Dept. fax (617)627-3966
http://www.tufts.edu/~znitecki/
On May 8, 2010, at 11:43, Michael Sharpe wrote:
>
> On May 8, 2010, at 7:53 AM, Zbigniew Nitecki wrote:
>
>> The following code (as minimal as it gets, except for calling un-needed ps packages)
>> is intended to draw the ellipse
>> 5x^2-6xy+5y^2=5:
>>
>>> %!TEX TS-program = latex
>>> \listfiles
>>> \documentclass[11pt]{article}
>>> \usepackage{pst-plot, pst-math}
>>> \usepackage{pst-solides3d}
>>> \usepackage{pst-3dplot, pst-func}
>>> \usepackage{pst-grad}
>>> \usepackage{pstricks-add}
>>>
>>> \begin{document}
>>> \begin{pspicture}(-3,-3)(3,3)
>>> \psplotImp[algebraic](-4,-4)(4,4){5*x^{2}-6*x*y+5*y^{2}-5}
>>> \end{pspicture}
>>>
>>> \end{document}
>
>
> It seems that the algebraic parser does not like the braces around the exponents. When I removed those, everything worked.
>
> Michael
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