Solves for distance between 2 points on a graph, or does the pythagorean theorm for B or C, giving you both radical and decimal answers. Solves for distance between 2 points on a graph, or does the pythagorean theorm for B or C, giving you both radical and decimal answers. All SKA software is very user-friendly. No documentation is needed to learn to use the program. To reach SKA software, e-mail to Science200@aol.com