norm
Matrix and vector norms
Syntax
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')
Input argument
M - a 2D matrix single or double
V - a vector single or double
p - a scalar (p-norm)
Output argument
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))) .
Examples
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
See also
svd.
History
Version
Description
1.0.0
initial version
Author
Allan CORNET
Last updated
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