hpcalc.org - HP 28 Archive

HP 28 Graphics Utilities

The first size listed is the downloaded file size and the second size listed is the size on the calculator.

There are 9 files totaling 857KB in this category.

3D Graphs   (details) 28 ENG   2KB/1KB
A very slow 3D graphing program.
By Yngvi Sigurjonsson. 2017/08/11

Fractal   (details) 28 ENG   2KB/1KB
Mandelbrot set fractal generator.
By John Adams. 1998/07/31

Graphics Compressor   (details) 28 ENG   2KB/1KB
Another RLE compressor/decompressor.
By Randy Elton Ding. 1998/07/31

Graphing with the HP-28S   (details) 28 ENG   839KB
Paper which presents a system of programs to make graphing easier on the 28S. They enable students to reflect on and refine a variety of examples without being distracted by the mechanics of operating the calculator, and allow one to change the center and scale of the viewing window easily, as well as to recover the previous viewing window.
By John Selden and Annie Selden. 2020/09/30

Mandelbrot   (details) 28 ENG   2KB/1KB
Another Mandelbrot set plotter.
By Glen Kilpatrick. 1998/07/31

Pixel   (details) 28 ENG   4KB/1KB
Pixel manipulation package.
By Eric Toonen. 1998/07/31

RLE Decoding/Encoding   (details) 28 ENG   1KB/1KB
Allows you to compress 28 grobs with RLE.
By Eugeni Bobrov. 1998/07/31

Screen Compression   (details) 28 ENG   2KB/1KB
Screenshot compression and decompression routines.
By Robert Peraino. 1998/07/31

Sketch   (details) 28 ENG   3KB/1KB
Set of routines for sketching pictures.
By Alan Weiss. 1998/07/31

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