Calculate and graphically display Julia and Mandelbrot sets
- Authored and Contributed by
- Ronald Joe Record
- Copyright 1993, 1994 Ronald Joe Record
The mathrec source code is freely redistributable. The author maintains
binary distributions for Caldera OpenLinux 3.1, OpenServer, UnixWare 7
and Open UNIX 8. These distributions and the source code are available via:
Julia and mandel are X11 clients.
Julia can be used to display the popular Julia sets. These sets are
calculated by iterating the map z -> z^2 + c where z and c are
Complex numbers, c a specified parameter and z the initial condition.
Mandel calculates and displays the Mandelbrot set. This is done by
iterating the same map, z -> z^2 + c, but here the initial condition
is held fixed at the origin and c is varied over a specified subset
of the Complex plane. An excellent on-line introduction to the Mandelbrot
set by Robert L. Devaney is available at
To build the julia and mandel binaries, either use the Imakefile or the
sample makefile - Makefile.std. To build with the Imakefile, first type
"xmkmf" or "imake -DUseInstalled -I/usr/lib/X11/config" if your system
doesn't have xmkmf. Then just type "make" and the julia binary will be
built. To create the mandel binary, type "ln julia mandel" as it is just
The manual pages can be formatted by typing "nroff -man julia.man > julia.doc"
and "nroff -man mandel.man > mandel.doc".
To install julia, copy the julia binary to the desired location (the sample
makefiles put it in /usr/local/bin)
Copy the formatted man page to wherever you keep your local doc (i use
/usr/man/cat.LOCAL for imaging software), then add that location
to your MANPATH.
- These programs and others like them are probably responsible for more
CPU cycles than any other single application.
- I have used these for years without harm.
- Work Planned
- manual pages.
- Execute any or all of the shell scripts provided in /usr/local/mathrec/julia
Ideas, comments, additions, deletions, suggestions, bug reports, code review,...
e-mail Ronald Record at firstname.lastname@example.org