
What is the norm of a complex number? [duplicate]
Jan 24, 2013 · In number theory, the "norm" is the determinant of this matrix. In that sense, unlike in analysis, the norm can be thought of as an area rather than a length, because the …
Understanding L1 and L2 norms - Mathematics Stack Exchange
Feb 6, 2021 · I am not a mathematics student but somehow have to know about L1 and L2 norms. I am looking for some appropriate sources to learn these things and know they work and what …
normed spaces - How are norms different from absolute values ...
Hopefully without getting too complicated, how is a norm different from an absolute value? In context, I am trying to understand relative stability of an algorithim: Using the inequality $\\frac{|...
functional analysis - Sobolev space - norm $H^1$ and $H^1_0 ...
Aug 16, 2013 · What norm are you using in $H^1$? or better saying what is the definition of $\|\cdot\|_ {H^1}$ for you?
What is the difference between the Frobenius norm and the 2 …
For example, in matlab, norm (A,2) gives you induced 2-norm, which they simply call the 2-norm. So in that sense, the answer to your question is that the (induced) matrix 2-norm is $\le$ than …
matrices - Orthogonal matrix norm - Mathematics Stack Exchange
Apr 22, 2016 · The original question was asking about a matrix H and a matrix A, so presumably we are talking about the operator norm. The selected answer doesn't parse with the definitions …
Differentiate the norm of a function - Mathematics Stack Exchange
Sep 13, 2019 · How should I differentiate the norm of a function? I mean, how can I get the first and second derivatives of something like: $$||\alpha (s)||^2$$ I know that I have to use the …
How do I find the norm of a matrix? - Mathematics Stack Exchange
Feb 12, 2015 · I learned that the norm of a matrix is the square root of the maximum eigenvalue multiplied by the transpose of the matrix times the matrix. Can anybody explain to me in …
Definition of $L_\infty$ norm - Mathematics Stack Exchange
Jul 7, 2014 · Definition of $L_\infty$ norm Ask Question Asked 11 years, 3 months ago Modified 8 years, 3 months ago
2-norm vs operator norm - Mathematics Stack Exchange
The operator norm is a matrix/operator norm associated with a vector norm. It is defined as $||A||_ {\text {OP}} = \text {sup}_ {x \neq 0} \frac {|A x|_n} {|x|}$ and different for each vector norm. In …