Reggression – eksponentiel:
Givet punkterne (0; 10), (2; 17), (5; 38), 
(10; 140), (15; 509), (20; 1900), (25; 7051)
Find den bedste eksponentielle udvikling gennem punkterne. 
Find f(8) og løs f(x)=200.
Find fordoblingskonstanten.

A1 = 0
A2 = 2
A3 = 5
A4 = 10
A5 = 15
A6 = 20
A7 = 25
B1 = 10
B2 = 17
B3 = 38
B4 = 140
B5 = 509
B6 = 1900
B7 = 7051
e = 2.718281828459045
A: (A1, B1)
B: (A2, B2)
C: (A3, B3)
D: (A4, B4)
E: (A5, B5)
F: (A6, B6)
G: (A7, B7)
liste1: {A, B, C, D, E, F, G}
f = FitGrowth(liste1)
g: x = 8
H = Intersect(f, g, (8, 82.1280203531829))
h: y = 200
I = Intersect(f, h, (11.398293879148511, 199.99999999974236))
i: y = 400
J = Intersect(f, i, (14.044829778880217, 399.99999963337416))
FordoblKonst: x(J) - x(I)
j: y = 800
K = Intersect(f, j, (16.691365685606137, 799.9999999999961))
NyFodoKonst: x(K) - x(J)