# Exact trigonometric constants

> mathematical concept

**Wikidata**: [Q2533727](https://www.wikidata.org/wiki/Q2533727)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Trigonometric_constants_expressed_in_real_radicals)  
**Source**: https://4ort.xyz/entity/exact-trigonometric-constants


## References

1. Freebase Data Dumps. 2013