---
title: "Conditional entropy mathematical notation"
description: "Conditional entropy is a recurring research-paper notation family. Measures the expected uncertainty remaining in one random variable after the other…"
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/conditional-entropy"
md_url: "https://fanout.sh/labs/math-decoder/symbol/conditional-entropy.md"
last_updated: "2026-08-09"
access: "public"
---

# Conditional entropy mathematical notation

Conditional entropy is a recurring research-paper notation family. Measures the expected uncertainty remaining in one random variable after the other…

## Public overview

Conditional entropy is a recurring research-paper notation family. Measures the expected uncertainty remaining in one random variable after the other variable is known.

Conditional entropy: Measures the expected uncertainty remaining in one random variable after the other variable is known. Example: Remove the uncertainty attributable to Y from the joint uncertainty.

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