Efficient algorithm needed

[Doug Gwyn]

In article <27497 at uflorida.cis.ufl.EDU> jdb at reef.cis.ufl.edu (Brian K. W. Hook) writes:
>I am working on a Windows 3.0 version of XEYES and need a very fast and not
>necessarily accurate algorithm for determining the following: ...

Why don't you instead adapt my public-domain code for the Blit (DMD/MTG)
"eyes"?  It works very nicely, better than "xeyes", and the code is much
simpler due to the Blit being cleaner than X11.

Send me email to request a copy of the "eyes" source.