man kseg (Commandes) - explore Euclidean geometry
NAME
kseg - explore Euclidean geometry
SYNOPSIS
kseg
files ...
DESCRIPTION
KSEG allows you to interactively create a geometrical construction, similar to what you can do with a straightedge and compass. Points may be inserted on the page with right mouse-button clicks, and then used to form segments, lines, circles, or other geometrical objects. At any time you can drag existing points around, and watch how the constructed objects respond.
AUTHOR
Ilya Baran <ibaran@mit.edu> http://www.mit.edu/~ibaran/
SEE ALSO
/usr/share/doc/kseg/README.gz