f = Function((0.7 * x^(2)), 0, 10)
A1 = 1
A2 = 2
A3: (2 * A2) - A1
A4: (2 * A3) - A2
A5: (2 * A4) - A3
A6: (2 * A5) - A4
A7: (2 * A6) - A5
A8: (2 * A7) - A6
A9: (2 * A8) - A7
A10: (2 * A9) - A8
B1: f(A1)
B2: f(A2)
B3: f(A3)
B4: f(A4)
B5: f(A5)
B6: f(A6)
B7: f(A7)
B8: f(A8)
B9: f(A9)
B10: f(A10)
A: (A1, B1)
B: (A2, B2)
C: (A3, B3)
D: (A4, B4)
E: (A5, B5)
F: (A6, B6)
G: (A7, B7)
H: (A8, B8)
g = Tangent(H, f)
I = Point(f)
h = Tangent(I, f)
nbdérivé = Slope(h)
M: (x(I), nbdérivé)
a = 1.85 (slider from -5 to 5, step 0.05)
i: y = (a * x)
j = Tangent(I, f)