---
tag: 020M04FN1H
kind: concept
name: Matrix exponential
msc: [15A16]
sources:
  - url: https://en.wikipedia.org/wiki/Matrix_exponential
    locator: lead section
same_as:
  wikidata: Q1191722
  wikipedia: Matrix exponential
---

## Summary

The exponential of a real or complex square matrix $A$ is the sum of the convergent power series $I + A + A^2/2! + A^3/3! + \cdots$.