UpperSum Command

UpperSum( <Function>, <Start x-Value>, <End x-Value>, <Number of Rectangles> )

Calculates the upper sum of the function on the interval [Start x-Value, End x-Value] using n rectangles.

Example: UpperSum(x^2, -2, 4, 6) yields 35.

Notes:

• This command draws the rectangles of the upper sum as well.
  
• This command is designed as a visual aid so won't give accurate answers if the number of rectangles is too large.
• See also the commands: LowerSum, LeftSum, RectangleSum, and TrapezoidalSum.