---
tag: 0NF1KGDXX3
kind: concept
name: Restriction of a function
aliases: [restricted-function]
msc: ["03E20"]
sources:
  - url: https://en.wikipedia.org/wiki/Restriction_(mathematics)
    locator: lead section
same_as:
  wikidata: Q1308999
  wikipedia: Restriction (mathematics)
---

## Summary

The restriction of a function to a subset of its domain is the function that has the same values but only on that subset.