LaTeX Complex Numbers () - Complete Guide

The complex numbers symbol (ℂ) represents the set of all complex numbers.

Symbol Preview

Complex Numbers

LaTeX Code

Requires: \usepackage{cmd.package}

Recommended
\mathbb{C}

Complex numbers set

What is the LaTeX Complex Numbers?

Complex numbers are numbers of the form a + bi, where a and b are real numbers and i is the imaginary unit (i² = -1).

How to Use Complex Numbers in LaTeX

Method 1: Using \mathbb{C}

⚠️Required Package:

\usepackage{cmd.package}

Complex numbers set

Example: Using \mathbb{C}

latex
\documentclass{article}
\usepackage{amssymb}
\begin{document}

% Using the Complex Numbers
Text with \mathbb{C}

\end{document}

Common Use Cases

The Complex Numbers symbol is commonly used in the following contexts:

Complex Number Set

Numbers with real and imaginary parts.

Code

$z = a + bi, a,b \in \mathbb{R}$

Output

z = a + bi, a,b ∈ ℝ

Complete Examples

Complex Numbers

Complex numbers and conjugates

latex
\documentclass{article}
\usepackage{amssymb}
\begin{document}

If $z = a + bi \in \mathbb{C}$, then $\bar{z} = a - bi$ is the complex conjugate.

\end{document}

Frequently Asked Questions

Which method should I use?

We recommend using the method marked as "Recommended" above. However, the best method depends on your specific needs:

  • \mathbb{C}: Complex numbers set

Where do I use this symbol?

This symbol can be used:

  • In mathematical equations (math mode)
  • In regular text (if using text mode)
  • In various document environments

Can I use this in display mode?

Yes, symbols that work in math mode (between $ $) also work in display mode (between $$ $$). This allows you to display the symbol on its own line with larger formatting.

🔗 Related Symbols You May Need

View all symbols →

🎯 Need to Convert PDF to LaTeX?

Our free PDF to LaTeX converter preserves all mathematical symbols and formatting.

Fast & accurate

Preserves symbols

Free online

No registration

Try Converter Now →