Integral Approximator 1.0 By Dan Bush Please do not distribute this program via computer without this file. You may copy it freely from calculator to calculator. Integral Approximator 1.0 will provide approximations for definite integrals of single-variable functions, using any of the Left Edge, Right Edge, Midpoint, Trapezoid, or Simpson's approximations, through a single interface. You can input new equations directly into the program, rather than go through the Y= menu. You can choose to keep your existing settings for comparison, or input a new equation and range.