- #1
Pacopag
- 197
- 4
Homework Statement
Suppose I define a linear coordinate transformation that I can describe with a matrix U.
If U is unitary. i.e.
[tex]U^{-1}U = UU^{-1}=1[/tex]
does that necessarily imply that the transformation corresponds to a pure rotation (plus maybe a translation), so that I may assume that volumes are invariant?