Stammfunktion
Author: G.Roolfs

Integralfunktion

f(x) = -1.0 * 1.0 * 1.0 * 1.0 * 0.5 * (x - 3.0) * (x + 1.0)
l = -0.4 (slider from -5 to 15, step 0.1)
g = Integral(f)
a = true
I(x) = g(x) - g(l)
r = Point(xAxis)
A = Integral(f, l, x(r))
b = Line(r, yAxis)
B = Intersect(I, b)
Text1 = Text("G. Roolfs")