# Euler–Mascheroni constant

> mathematical constant; limiting difference between the harmonic series and the natural logarithm; equal to ca 0.577

**Wikidata**: [Q273023](https://www.wikidata.org/wiki/Q273023)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Euler's_constant)  
**Source**: https://4ort.xyz/entity/euler-mascheroni-constant


## References

1. Nuovo soggettario
2. Freebase Data Dumps. 2013
3. Integrated Authority File
4. [On-Line Encyclopedia of Integer Sequences](https://oeis.org/A001620)