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| author | ijliao <ijliao@FreeBSD.org> | 2001-04-24 00:52:21 +0800 |
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| committer | ijliao <ijliao@FreeBSD.org> | 2001-04-24 00:52:21 +0800 |
| commit | 54ccf787b9a244ac931513915ae8fe92701b6de1 (patch) | |
| tree | b746fd476f4a3b239732fb87dea64a20922d40f2 /math/surf/pkg-descr | |
| parent | 47553f43b2bb708f64b2317c53eb23f554486d36 (diff) | |
| download | freebsd-ports-gnome-54ccf787b9a244ac931513915ae8fe92701b6de1.tar.gz freebsd-ports-gnome-54ccf787b9a244ac931513915ae8fe92701b6de1.tar.zst freebsd-ports-gnome-54ccf787b9a244ac931513915ae8fe92701b6de1.zip | |
add surf
Visualize some real algebraic geometry
Diffstat (limited to 'math/surf/pkg-descr')
| -rw-r--r-- | math/surf/pkg-descr | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/math/surf/pkg-descr b/math/surf/pkg-descr new file mode 100644 index 000000000000..67800fad02fb --- /dev/null +++ b/math/surf/pkg-descr @@ -0,0 +1,14 @@ +surf is a tool to visualize some real algebraic geometry: plane algebraic +curves, algebraic surfaces and hyperplane sections of surfaces. surf is +script driven and has (optionally) a nifty GUI using the Gtk widget set. + +The algorithms should be stable enough not to be confused by curve/surface +singularities in codimension greater than one and the degree of the surface +or curve. This has been achieved quite a bit. We have drawn curves of degree +up to 30 and surfaces of degree up to 20 successfully. However, there are +examples of curves/surfaces of lower degree where surf fails to produce +perfect images. This happens especially if the equation of the curve/surface +is not reduced. Best results are achieved using reduced equations. On the +other hand, surf displays the Fermat-curves accurately for degree up to 98. + +WWW: http://surf.sourceforge.net/ |