polinomialp.py

Created on May 31, 2023

427 Bytes

vecteurs colinéaires de mm sens
-->AB.-->AC = AB*AC*cos(0)
vecteurs colinéaires opposés
-->AB.-->AC = -AB*AC

normes

AB.AC= 1/2(AB**2+AC**2-BC**2)
AB.AC= 1/2(AD**2-AB**2-AC**2)

Projeté orthogonal

vecteurs colinéaires de mm sens
-->AB.-->AC=AB*AH
vecteurs colinéaires opposés
-->AB.-->AC=-AB*AH

vecteurs orthogonaux

-->u.-->v = -->v.-->u
u.(v.w) = u.v + u.w

coordonnées : 
  
-->u.-->v = xx'+yy'

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