Број на делбени индервали

f(x) = x^(2) / 3 - (2 * x) + 5
a_{DolnaGranica} = -3 (slider from -5 to 5)
b_{GornaGranica} = 8 (slider from 0 to 10)
n = 18 (slider from 2 to 100, step 1)
GornaRimanovaSuma = UpperSum(f, a_{DolnaGranica}, b_{GornaGranica}, n)
DolnaRimanovaSuma = LowerSum(f, a_{DolnaGranica}, b_{GornaGranica}, n)
OpredelenIntegral = Integral(f, a_{DolnaGranica}, b_{GornaGranica})