---
tag: 0AR68JTMDT
kind: concept
name: Unitary matrix
msc: [15B57, 15A21]
sources:
  - url: https://en.wikipedia.org/wiki/Unitary_matrix
    locator: lead section
same_as:
  wikidata: Q727103
  wikipedia: Unitary matrix
---

## Summary

A unitary matrix is a complex square matrix whose conjugate transpose is its inverse.