LaTeX Defined as Equal (:=) - Complete Guide
The defined as equal symbol (:=) indicates a definition.
Symbol Preview
Defined as Equal
LaTeX Code
No package required
:=Defined as
No package required
\coloneqColon equals
What is the LaTeX Defined as Equal?
Used to denote that the left side is defined to equal the right side.
How to Use Defined as Equal in LaTeX
Method 1: Using :=
✅No package required
Defined as
Example: Using :=
\documentclass{article}
\begin{document}
% Using the Defined as Equal
Text with :=
\end{document}Method 2: Using \coloneq
✅No package required
Colon equals
Example: Using \coloneq
\documentclass{article}
\begin{document}
% Using the Defined as Equal
Text with \coloneq
\end{document}Common Use Cases
The Defined as Equal symbol is commonly used in the following contexts:
Definition
Define a new quantity.
Code
$S := \{x : x > 0\}$Output
S := {x : x > 0}
Complete Examples
Definition Example
Using defined as operator
\documentclass{article}
\begin{document}
Let $n := 2m + 1$ be odd.
\end{document}Frequently Asked Questions about Defined as Equal (:=)
Which LaTeX code should I use for Defined as Equal?
For the Defined as Equal symbol (:=), we recommend using the method marked as "Recommended" above. However, the best method depends on your specific needs:
- :=: Defined as
- \coloneq: Colon equals
Where can I use the Defined as Equal symbol?
The Defined as Equal symbol (:=) is typically used:
- In mathematical equations (math mode)
- In regular text (if supported)
- In various LaTeX environments
Can I use the Defined as Equal symbol in display mode?
Yes, the Defined as Equal symbol (:=) works in display mode (between $$ $$). This allows you to render the symbol on its own line with better visibility.
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