LaTeX Equal as Defined (=:) - Complete Guide
The equal as defined symbol (=:) indicates the right side is defined as the left.
Symbol Preview
Equal as Defined
LaTeX Code
No package required
=:Equal as defined
No package required
\eqcolonEquals colon
What is the LaTeX Equal as Defined?
Used when the right side is defined to equal the left side.
How to Use Equal as Defined in LaTeX
Method 1: Using =:
✅No package required
Equal as defined
Example: Using =:
\documentclass{article}
\begin{document}
% Using the Equal as Defined
Text with =:
\end{document}Method 2: Using \eqcolon
✅No package required
Equals colon
Example: Using \eqcolon
\documentclass{article}
\begin{document}
% Using the Equal as Defined
Text with \eqcolon
\end{document}Common Use Cases
The Equal as Defined symbol is commonly used in the following contexts:
Definition
Right side is defined by left side.
Code
$\sqrt{2} =: r$Output
√2 =: r
Complete Examples
Definition Example
Equal as defined operator
\documentclass{article}
\begin{document}
Let $\sqrt[n]{a} =: \sqrt[n]{a}$.
\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:
- =:: Equal as defined
- \eqcolon: Equals colon
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.
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