---
tag: 0GCM7B6PBK
kind: concept
name: Concave function
msc: [26A51]
sources:
  - url: https://en.wikipedia.org/wiki/Concave_function
    locator: lead section
same_as:
  wikidata: Q2914302
  wikipedia: Concave function
---

## Summary

A concave function on an interval is a function whose graph lies on or above each of its chords. A function is concave exactly when its negative is convex. The node [[concave function|0EF2VG8XKQ]] gives the precise definition.