Sketch 83 is widely regarded as one of the fastest and most comprehensive graphics systems available for the TI-83 series. It functions as a robust "graphic design system" within the constraints of calculator hardware.

"Sketch 83" refers to a highly-rated designed for drawing and image management on graphing calculators. Review: Sketch 83 Graphics System

“It is the FASTEST system out there. It has pen, boxes, lines, inverses, text, and many, many more features.” ticalc.org · 4 years ago