# logarithmic integral

> special function defined as the antiderivative of 1 / ln(x)

**Wikidata**: [Q1350206](https://www.wikidata.org/wiki/Q1350206)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Logarithmic_integral_function)  
**Source**: https://4ort.xyz/entity/logarithmic-integral


## References

1. Freebase Data Dumps. 2013
2. ISO 80000-2:2019 Quantities and units — Part 2: Mathematics