somme des vecteurs

soustraction vecteur v -vecteur u

A = (-9.172857142857143, 3.877516778523483)
B = (-5.6918285714285695, 6.166107382550329)
u = Vector(A, B)
C = (1.2457142857142918, 7.458053691275162)
D = (7.668457142857153, 3.2869127516778454)
v = Vector(C, D)
E = (-11.869428571428573, -4.907718120805378)
E' = Translate(E, v)
w = Vector(E, E')
E'' = Translate(E', u)
a = Vector(E', E'')
b = Vector(E, E'')
F = (1.147657142857149, -4.833892617449673)
F' = Translate(F, v)
c = Vector(F, F')
B' = Mirror(B, A)
d = Vector(A, B')
F'' = Translate(F', d)
e = Vector(F', F'')
f = Vector(F, F'')
normevectu = Length(u)
texte1 = LaTeX(normevectu, true, true)
normvectv = Length(v)
texte2 = LaTeX(normvectv, true, true)
normesomme = Length(b)
texte3 = LaTeX(normesomme, true, true)
normesoustraction = Length(f)
texte4 = LaTeX(normesoustraction, true, true)