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Mandel 89 v1.0
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This program for the TI-89 calulator draws the well known Mandelbrot fractal.

Features:
* 32-bit fixed-point math.
* 7 shade gray scale.
* Zooming capability.
* Written in assembly.

To use Mandel 89 send mandel89.89z to your calculator using a link cable.
You need DoorsOS with library graphlib installed.

At the home screen type mandel89() and the program should draw the fractal.
When drawing is complete, press any key to bring up the zoom box. 
The box can be positioned by using the arrow keys.
Select the area you want to zoom in on and press ENTER.
 
You can quit at any time, except when the fractal is being calculated, by
pressing the ESC key.  

Because of the limitations of 32-bit calculations, zooming many times will
decrease detail and complexity of the fractal. The fracal will also draw
slower every time you zoom. You should be able to zoom 10 times or so
before image quality gets really bad.

Known bugs:
None

I cannot be held responsible for any damage this program may cause.


Version history

v1.0
* Fixed zoom box bug.
* Added dynamic iteration limiter.
* Zoom box size is now 1/4 of screen size.

v0.9b
* Initial release.


Author:
Mattias Radeskog, Stockholm, Sweden.
E-mail: d97-mra@nada.kth.se
Site: http://hem1.passagen.se/mdr/

Please report bugs!