---
title: "Ones vector mathematical notation"
description: "Ones vector is a recurring research-paper notation family. Names a vector, matrix, or tensor whose entries are all one, with shape inferred from context."
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/ones-vector"
md_url: "https://fanout.sh/labs/math-decoder/symbol/ones-vector.md"
last_updated: "2026-08-09"
access: "public"
---

# Ones vector mathematical notation

Ones vector is a recurring research-paper notation family. Names a vector, matrix, or tensor whose entries are all one, with shape inferred from context.

## Public overview

Ones vector: Names a vector, matrix, or tensor whose entries are all one, with shape inferred from context. Example: Dotting x with ones adds all coordinates.

---
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