nnodes = 10
maxx = 4
maxy = 4
A = (2.12, 1.16)
B = (-0.98, 1.3)
C = (-1.14, 3.32)
D = (1.2, 3.36)
E = (2.12, -0.94)
F = (0.62, 0.18)
G = (-1.66, -0.86)
H = (-2.44, 0.74)
I = (-3.06, 3.04)
J = (2.9, 2.74)
u = Vector(E, A)
v = Vector(A, B)
w = Vector(G, B)
z = Vector(C, B)
a = Vector(D, A)
b = Vector(A, J)
c = Vector(B, F)
d = Vector(A, F)
e = Vector(G, H)
f = Vector(I, H)
g = Vector(I, C)
h = Vector(B, C)
i = Vector(F, A)