defint was written by wnc@datatamers.com to help figure out the definite
integral for a function using the reiman, simpsons, trapezoid, methods.


This program finds the definite integral in many ways, and has lots of
features. when u start it, it will as for f(x), input and equation, the
lower limit, the upper limit, and how many subintegers. A menu will
appear w/ trap ( for the trapezoidal method) reimn (for the reiman
method) Simps (for simpsons method) Cald (for the calculator's value)
Menu 2 (for the next menu). In the next menu you can choose Shade, for
drawing the graph w/ shading the integral, ALL which shows all the
methods at once (useful), Menu1 to goto the first menu, and quit.
2 sub menus to know about: in shade, you will be prompted to the size of
the graph window, eg min. x max c min y max y values. and the Reiman sum
will allow you to choose between the left, mid, and right reiman sums.
