How to use Big Delta(Δ) symbol in LaTeX?

Symbol/UnicodeBig Delta/U+0394
Type of symbolGreek capital letter
Package (requirement)No
ArgumentNo
Latex command\Delta
Example\Delta → Δ

You can use LaTeX’s default command \Delta to print the big Delta symbol in a LaTeX document.

\documentclass{article}
\begin{document}
$\Delta t = t_1 - t_2$
$a = \frac{\Delta v}{\Delta t}$
$\sum\limits_{\Delta \epsilon I}$
\end{document}

Output :

varDelta(𝛥) in LaTeX

You will need the amsmath package to print the varDelta symbol to a latex document. You can print this symbol in the document with the \varDelta command included in this package.

Here you can see that there is a slight difference between the output of the \Delta and \varDelta commands.

\documentclass{article}
\usepackage{amsmath}
\begin{document}
$\verb|\Delta|\rightarrow \Delta \quad \verb|\varDelta|\rightarrow \varDelta$
$c = \varDelta c = 2\pi(r + r\varDelta)$
$\verDelta r= \frac{\varDelta}{2\pi}$
\end{document}

Output :

Bold Delta and varDelta symbol

You can use LaTeX’s default command \mathbf to bold the delta symbol, or you can use the \bm command from the bm package.

But the varDelta symbol cannot be bolded by the \mathbf command, so you have to use the \bm  command of the bm package.

\documentclass{article}
\usepackage{amsmath}
\usepackage{bm}
\begin{document}
$\verb|{\Delta}|\rightarrow \Delta \quad \verb|\varDelta|\rightarrow \varDelta$
$\verb|\mathbf{\Delta}|\rightarrow \mathbf{\Delta} \quad \verb|\bm{\Delta}|\rightarrow \bm{\Delta}$
$\verb|\mathbf{\varDelta}|\rightarrow \mathbf{\varDelta} \quad \verb|\bm{\varDelta}|\rightarrow \bm{\varDelta}$
\end{document}

Output :

1 thought on “How to use Big Delta(Δ) symbol in LaTeX?”

1. Thanks for notifying me, it has been fixed.

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