# ‖

> punctuation sign double vertical line (U+2016), used in pairs to indicate a matrix norm

**Wikidata**: [Q87523294](https://www.wikidata.org/wiki/Q87523294)  
**Source**: https://4ort.xyz/entity/--q87523294


## References

1. [Unicode 13.0. 2020](https://www.unicode.org/Public/13.0.0/ucd/NamesList.txt)
2. [Source](https://html.spec.whatwg.org/multipage/named-characters.html)
3. [Source](https://html.spec.whatwg.org/multipage/syntax.html#character-references)
4. [Source](https://www.unicode.org/Public/UCD/latest/ucd/NamesList.txt)