TI-82 Program: RECTANGL 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 n rectangles. You can do a left-hand sum, right-hand sum or midpoint sum. You can view the results both graphically and numerically. 1. Before you run the program, store f(x) in y1 and set the desired graph window. 2. Run the program, respond yes to the questions if you did step 1, otherwise no and do step 1. 3. Work your way down the menu items, set the bounds (BOUNDS), set the number of rectangles (N), set the type of sum (R) and find the sum (SUM). 4. Program will display the curve and the rectangles. 5. Press ENTER to see the value of the sum, ENTER again to return to the menu. Exit will quit the program. Last updated: 2/20/98