---
tag: 0XDK9CGYKJ
kind: concept
name: Rational function
msc: [26A09]
sources:
  - url: https://en.wikipedia.org/wiki/Rational_function
    locator: lead section
same_as:
  wikidata: Q41237
  wikipedia: Rational function
---

## Summary

A rational function is a function given by a quotient of two polynomials. It is defined and continuous wherever the denominator is not zero. The node [[rational function|0WCZH4AFMT]] gives the precise definition.