norm
Matrix and vector norms
📝Syntaxe
R = norm(V)
R = norm(V, p)
R = norm(V, 'fro')
R = norm(M)
R = norm(M, 1)
R = norm(M, 2)
R = norm(M, Inf)
R = norm(M, 'fro')
📥Arguments d'entrée
Paramètre Description
M a 2D matrix single or double
V a vector single or double
p a scalar (p-norm)
📤Arguments de sortie
Paramètre Description
R result of norm: scalar.
📄Description

norm computes the norm of a vector or a matrix.

Frobenius norm of M is equal to sqrt (sum (diag (M' * M))) .

💡Exemples
M = [1 2; 3 4];
norm(M)
norm(M, 1)
norm(M, 2)
norm(M, Inf)
norm(M, 'fro')
V = [1 2 3 4];
norm(V)
norm(V, 1)
norm(V, 2)
norm(V, Inf)
norm(V, 'fro')
x = ones(3000, 3000);
tic();R = norm(x);toc
🔗Voir aussi
svd
🕔Historique des versions
Version Description
1.0.0 version initiale
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