i = 0.695 (slider from 0 to 5, step 0.01)
b = 1 (slider from -5 to 5, step 0.1)
a = 1.3 (slider from -5 to 5, step 0.1)
f(x) = a * exp(b * x)
P = Point(f)
Q: (x(P) + i, f(x(P) + i))
c: y(Q) / y(P)
d = Segment((x(P), 0.0), P)
e = Segment((x(Q), 0.0), Q)
Text1: "e : d = " + (e / d)
g = Segment((x(P), 0.0), (x(Q), 0.0))