A = (1, 1)
B = (1, 4)
C = (2.5, 4)
D = (2, 2.5)
E = (1, 2.5)
F = (3, 4)
G = (4, 1)
H = (5, 4)
a = Segment(A, B)
c = Segment(D, E)
d = Segment(G, F)
e = Segment(G, H)
b = Segment(C, B)
I = analytique(C)
J = analytique(B)
K = analytique(E)
L = analytique(D)
M = analytique(A)
N = analytique(F)
O = analytique(H)
P = analytique(G)
f = Segment(N, P)
g = Segment(P, O)
h = Segment(M, J)
i = Segment(J, I)
j = Segment(L, K)

Tool: analytique
Input: A
Output: A'

A': (6 x(A) / (6 - y(A)), 10 y(A) / (6 - y(A)))