matrice.py

Created on December 04, 2023

458 Bytes

In * A = A* In = A

A*A^^-1 = In

A*A^^-1 = A^^-1*A = In


A(2  3) mat inverse A^^-1(5  3
 -3 -5                   -3 -2
 
 
montrer que deux mat son inverse

faire A * B

si resultat = (1 0 0  
               0 1 0
               0 0 1)
alors inverse l'un de l'autre


A^^-1 = matrice inverse de A


I = 1 en matrice

savoir si 1mat est inversible

det(C) si != 0 alors ok

c*m = d

c^^-1 *c * m = d * c^^-1
I2 * m = d * c^^-1
m = C^^-1 * d

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