Un-skewing a skew symmetric matrix (for want of a better phrase)

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SUMMARY

The discussion centers on the terminology used to describe the conversion between a column vector in \(\mathbb{R}^3\) and its corresponding skew symmetric matrix. The skew symmetric matrix is defined as M = [0, -z, y; z, 0, -x; -y, x, 0]. Participants seek a more precise term than "unskewing" for the process of converting a skew symmetric matrix back into its vector form. The term "representing a skew symmetric 3x3 matrix by a vector in \(\mathbb{R}^3\)" is suggested as a more formal description.

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  • Understanding of skew symmetric matrices
  • Familiarity with vector representation in \(\mathbb{R}^3\)
  • Basic knowledge of linear algebra concepts
  • Experience with matrix operations
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  • Learn about the relationship between vectors and matrices in \(\mathbb{R}^3\)
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TL;DR
A better term for the process of creating a skew symmetric matrix
Hello

Say I have a column of components

v = (x, y, z).

I can create a skew symmetric matrix:

M = [0, -z, y; z, 0; -x; -y, x, 0]

I can also go the other way and convert the skew symmetric matrix into a column of components.

Silly question now...

I have, in the past, referred to this as "skewing a column into a skew symmetric matrix" or "unskewing the skew symmetric matrix."

Is there a better phrase to describe this? (mostly, the second one).

(And forget the algebra and the reasons... I just need the term that best describes the process.)
 
Physics news on Phys.org
Representing a skew symmetric 3x3 matrix by a vector in ##\mathbb{R}^3## would be the fancy way of saying it.
 

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