vecteur.py

Created on March 29, 2022

462 Bytes

coordonneées vecteurs

xb-xa , yb-ya, zb-za

coord milieu I

xa +xb/2, ya+yb/2, za+zb/2

norme vecteur

|u= u.u|= rac de x2+y2+z2

|AB| = rac de (xb-xa)2+(yb-ya)2+(zb-za)2

paramétrique
x = xa + taa
y= yx + tbb
z= zx + tcc
A(a,b,c)
u(aa,bb,cc)

coplanaires =
2 droites secantes ou parallèles
non cop =
aucun point commun

equa para

on calcule le vecteur
x - xa = t(coord vecteur cal)
y - ya = t(coord vecteur cal)
z - za = t(coord vecteur cal)

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