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From: marioski <warrencun-grp@yahoo.fr>
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bonjour,

Bien que j'ai en t=C3=AAte les formules de changement de base,je n'arrive p=
as =C3=A0 r=C3=A9soudre ce petit probl=C3=A8me peut-=C3=AAtre complexe:
Je dispose dans l'espace de 2 rep=C3=A8res orthonorm=C3=A9s.
le premier rep=C3=A8re R1 est (0,i,j,k) :celui de la base de l'espace o=C3=
=B9 i,j,k sont des vecteurs unitaires et O le point origine du rep=C3=A8re.
le second R2 est un autre rep=C3=A8re orthonorm=C3=A9(0,a,b,c) o=C3=B9 a,b,=
c sont d'autres vecteurs unitaires

Comment d=C3=A9terminer la rotation (angle+axe) permettant de transformer R=
1 en R2?


merci de votre aide