differentielletotale.py

Created by alten01

Created on December 17, 2024

464 Bytes

differentielle totale petit Df=
df/dxi Dx1 + df/dx2 Dx2+...+
df/dxn Dxn

grad f represente la direction de 
la plus grande variation de f
grad>f=(df/dx1,df/dx2,...,df/dxn)

formule du gradient de plusieurs
variables en coordonnees 
cartesiennes
gradf=(df/dx,df/dy,df/dz)

gradient au point M(x,y,z)
on remplace

calcul du vecteur unitaire de 
la normale
norme de gradient de g(M)
=sqrt(x^2+y^2+z^2)
soit la normale=(gradientg(M)
/norme)

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