Provided 3 or more points from a diodes V-I Characteristic curve, solves for the Emission coefficient, Saturation Current, and Ohmic Resistance of the Shockley model for a diode. This is primarily used as a way to find the parameters needed in a spice model of a diode. Note: The more V-I points, the more accurate the results. To acquire points from a V-I plot, the site WebPlotDigitizer may be useful.