TI-85 Program:  SIMPSON

This program will approximate the area of the region 
bounded by the x-axis, the curve y = f(x), x = a, and 
x = b using Simpsons Rule.  You can view the results 
both graphically and numerically or numerically only.

1. Before you run the program, store f(x) in y1 and 
   set the desired graph window.
2. Run the program, respond yes to question if you did
   step 1, otherwise no and do step 1.
3. Respond to Display graph option.
4. Work your way across the menu, set the bounds (Bnds),
   set the number of trapezoids (N), and calculate the 
   sum (CONT).
5. You can display the function only (Shof), the 
   parabolas used to approximate the area (parab), or 
   the function and parabola(s) (Both).
6. Program will display the curve and the parabolas.  
   You can toggle between the sum and the graph.

Return will allow you to go back to the previous menu, 
Exit will quit the program.

Note:  The INTEGRAT program calls this program.

Last updated: 2/9/98