Not so long ago, the typical science or research lab was filled with large, heavy instruments, each designed to do just one thing. Now scientists, engineers, and amateurs alike can download lab-grade instruments for free. For example, there's SigmaGraph, a free plotting and analysis tool from SIDI. It offers scientific graphing, curve fitting, editable data sheets, drawing tools, a scripting engine, and more.
SigmaGraph consists of three parts: the SigmaConsole, a mathematical tool that's sort of like a tiny virtual blackboard; the SigmaGraph interface, with a typical Windows layout; and the SigmaTray icon, which resides in the System … Read more