Gratis ordbok - engelska svenska tyska lexikon

Definitioner

Substantiv

1. Mathematical measure of length given by "the square root of the squares." Denoted by ||·||_2, the two-norm of a vector \vec v= is ||\vec v||_2=\sqrt{a_1^2+a_2^2+\cdots+a_n^2}. The two norm of an m× m matrix A is defined by \max_{\vec v≠\vec 0}\frac{||A\vec v||_2}{||\vec v||_2} where \vec v is an m-dimensional vector that is not the zero vector.