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Frobenius Norm#

Definition:

The Frobenius norm of a real matrix \(A \in \mathbb{R}^{m \times n}\) is defined as follows:

\[\sqrt{\sum_{i = 1}^m \sum_{j = 1}^n a_{ij}^{2}}\]

Notation

\[||A|| \qquad ||A||_2\]
Proof: Frobenius Norm is a Norm

TODO