---
title: "Positional encoding mathematical notation"
description: "Positional encoding is a recurring research-paper notation family. Maps a token position to features that let an otherwise permutation-insensitive…"
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/positional-encoding"
md_url: "https://fanout.sh/labs/math-decoder/symbol/positional-encoding.md"
last_updated: "2026-08-09"
access: "public"
---

# Positional encoding mathematical notation

Positional encoding is a recurring research-paper notation family. Maps a token position to features that let an otherwise permutation-insensitive…

## Public overview

Positional encoding is a recurring research-paper notation family. Maps a token position to features that let an otherwise permutation-insensitive attention stack represent order.

Positional encoding: Maps a token position to features that let an otherwise permutation-insensitive attention stack represent order. Example: Add information about what the token is and where it occurs.

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