- The buttons under the graph allow various manipulations of the graph coordinates.
- The text input field for
*f*(*x*) can accept a wide variety of expressions to represent functions. - The text input fields for
*a*and*b*can accept real numbers in decimal notation. - For the Trapezoid Rule,
the "+" and "-"
buttons change
the value of
*n*changes by 1 at each step; for Simpson's Rule,*n*must be even, so the value changes by 2 at each step.