Typo (Ch 4.5.3)

[st--]

Describe the mistake
"It is worth, to briefly discuss SVD terminology and conventions, as there are different versions used in the literature. The mathematics remains invariant to these differences, but these differences can be confusing."
"It is worth" should not be followed by a comma. The second sentence reads a bit oddly too.

Location
Please provide the

1. version 2021-01-14
2. Chapter 4.5.3
3. page 128 [pdf 134]
4. paragraph just following the example 4.14 box

Proposed solution
Rewrite, e.g.:
"It is worth to briefly discuss SVD terminology and conventions, as there are different versions used in the literature. While these differences can be confusing, the mathematics remains invariant to them."

[mpd37]

thanks. will be fixed with the next update