3D Scientific Calculator 1.12 Free download

This program offers many features for doing calculations in math, physics, statistics, and engineering. These include 2D & 3D equation graphing like "x*sin(y)", physics / engineering unit conversions & constants, frequency spectrum, Fourier transform (if you have a microphone you can actually analyze your voice), curve fitting / line regression, polynomial fit, histogram, trig functions, spreadsheet, & more!