Software
Click the picture to download. They were made several
years ago and are not the best, but usable. No time to include
help command. All are for Epson dot printer except for spirograf.exe.
They are all zip files and you need to unzip them to use them.
EFIELD24.ZIP(50K): DOS(Turbo Basic): Plots electric field
lines and equi-potential lines of any charge configuration.
SPIROGRAF.ZIP(192K): WINDOWS(VB1.0): Spirograph generates interesting
patterns. See example patterns.