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Omega Symbol in LaTeX (Greek Letters for Math)

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The Omega Symbol in LaTeX

Omega (Ω, ω) is one of the most frequently used Greek letters in science and mathematics.

Typing Omega

Lowercase Omega (ω)

Uppercase Omega (Ω)

Common Uses of Omega

Physics: Angular Frequency

Where f is frequency and T is period.

Physics: Angular Velocity

Electrical Engineering: Ohms

The uppercase Omega represents ohms (resistance):

For proper unit formatting, use the siunitx package:

Mathematics: Big-O Notation

Set Theory: Sample Space

Chemistry: Solid Angle

Omega in Different Styles

Bold Omega

Omega with Subscripts/Superscripts

Vector Omega

Related Greek Letters for Physics

Example: Simple Harmonic Motion

Example: AC Circuits

Tips for Using Omega

  1. Always use math mode: $\omega$, not just \omega

  1. Use \Omega for ohms, not O (letter O)

  1. For units, prefer siunitx package

  1. Add thin space before units: 100\,\Omega

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