0

1

1

f(x) = If[0 ≤ x ≤ 1, x^(2)]
n = 4 (slider from 0 to 100, step 1)
S = LowerSum(f, 0, 1, n)
S' = UpperSum(f, 0, 1, n)
A = Point(yAxis)
B = Point(xAxis)