# arccosine

> inverse of the cosine function

**Wikidata**: [Q720341](https://www.wikidata.org/wiki/Q720341)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Arccosine)  
**Source**: https://4ort.xyz/entity/arccosine


## References

1. ISO 80000-2:2019 Quantities and units — Part 2: Mathematics
2. Quora