---
title: "Hidden state mathematical notation"
description: "Hidden state is a recurring research-paper notation family. Represents an internal learned feature vector or tensor passed between layers, time steps, or…"
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/hidden-state"
md_url: "https://fanout.sh/labs/math-decoder/symbol/hidden-state.md"
last_updated: "2026-08-09"
access: "public"
---

# Hidden state mathematical notation

Hidden state is a recurring research-paper notation family. Represents an internal learned feature vector or tensor passed between layers, time steps, or…

## Public overview

Hidden state is a recurring research-paper notation family. Represents an internal learned feature vector or tensor passed between layers, time steps, or transformer blocks.

Hidden state: Represents an internal learned feature vector or tensor passed between layers, time steps, or transformer blocks. Example: Update the internal representation using new input and prior context.

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