---
tag: 0Q4QJWEHW3
kind: concept
name: Second derivative
msc: [26A24]
sources:
  - url: https://en.wikipedia.org/wiki/Second_derivative
    locator: lead section
same_as:
  wikidata: Q1932744
  wikipedia: Second derivative
---

## Summary

The second derivative of a function is the derivative of its derivative. It measures how the slope changes, and so how the graph bends. The node [[second derivative|0Y9D2FJRQ4]] gives the precise definition.