---
tag: 0RW9TNNT87
kind: concept
name: Orthonormal family
msc: [15A63, 46C05]
sources:
  - url: https://en.wikipedia.org/wiki/Orthonormality
    locator: Definition
same_as:
  wikidata: Q1411166
  wikipedia: Orthonormality
---

## Summary

An orthonormal family is a family of unit vectors that are pairwise orthogonal.