LaTeX Omega (Capital) (Ω) - Complete Guide

Uppercase Omega (Ω) is the symbol for ohms (electrical resistance) and the sample space in probability.

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Ω

Omega (Capital)

LaTeX Code

No package required

Recommended
\Omega

Uppercase Omega - ohm or sample space

What is the LaTeX Omega (Capital)?

The uppercase Omega (Ω) has multiple important uses: it is the SI unit symbol for electrical resistance (ohm), and it represents the sample space in probability theory.

How to Use Omega (Capital) in LaTeX

Method 1: Using \Omega

✅No package required

Uppercase Omega - ohm or sample space

Example: Using \Omega

latex
\documentclass{article}

\begin{document}

% Using the Omega (Capital)
Text with \Omega

\end{document}

Common Use Cases

The Omega (Capital) symbol is commonly used in the following contexts:

Electrical Resistance

Symbol for ohms (electrical resistance).

Code

Resistance: $R = 100\Omega$

Output

Resistance: R = 100Ω

Sample Space

Used for the sample space in probability.

Code

Sample space: $\Omega = \{H, T\}$

Output

Sample space: Ω = {H, T}

Complete Examples

Ohm's Law

Ohm's law with ohm unit

latex
\documentclass{article}
\begin{document}

Ohm's Law: $V = IR$, where $R$ is in ohms ($\Omega$).

\end{document}

Probability Sample Space

Sample space in probability

latex
\documentclass{article}
\begin{document}

For a coin flip, the sample space is $\Omega = \{\text{Heads}, \text{Tails}\}$.

\end{document}

Frequently Asked Questions about Omega (Capital) (Ω)

Which LaTeX code should I use for Omega (Capital)?

For the Omega (Capital) symbol (Ω), we recommend using the method marked as "Recommended" above. However, the best method depends on your specific needs:

  • \Omega: Uppercase Omega - ohm or sample space

Where can I use the Omega (Capital) symbol?

The Omega (Capital) symbol (Ω) is typically used:

  • In mathematical equations (math mode)
  • In regular text (if supported)
  • In various LaTeX environments

Can I use the Omega (Capital) symbol in display mode?

Yes, the Omega (Capital) symbol (Ω) works in display mode (between $$ $$). This allows you to render the symbol on its own line with better visibility.

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