mathsfonctionsdeplusieursvaribales.py

Created by condouarthur

Created on May 08, 2023

347 Bytes


dérivée suivant un vecteur en un point:
  Dvf(a)=lim t->0 f(a+tv)-f(a)/t
Fonction de classe C1 ssi ses dérivées partielles d'ordre 1 existent et sont continues
si f et g C1 :
  f+g C1
  Lf C1
  fg C1
  si g diff 0 f/g C1
  Si phi fonction C1 sur I et f(u) inclus dans I alors phi o f C1
f C1 continue 

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