---
title: "Transformer feed-forward network mathematical notation"
description: "Transformer feed-forward network is a recurring research-paper notation family. Applies learned feature expansion, nonlinear activation, and feature…"
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/feed-forward-network"
md_url: "https://fanout.sh/labs/math-decoder/symbol/feed-forward-network.md"
last_updated: "2026-08-09"
access: "public"
---

# Transformer feed-forward network mathematical notation

Transformer feed-forward network is a recurring research-paper notation family. Applies learned feature expansion, nonlinear activation, and feature…

## Public overview

Transformer feed-forward network is a recurring research-paper notation family. Applies learned feature expansion, nonlinear activation, and feature projection independently at each token position.

Transformer feed-forward network: Applies learned feature expansion, nonlinear activation, and feature projection independently at each token position. Example: Expand each token's features, transform them nonlinearly, then project back.

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