# [Tex/LaTex] How to elongate down arrow

math-modesymbols

\downarrow command is available in directory but it has fixed length. How can I elongate its length?

The \downarrow symbol is an extensible delimiter:

\documentclass{article}

\newcommand{\xdownarrow}[1]{%
{\left\downarrow\vbox to #1{}\right.\kern-\nulldelimiterspace}
}

\begin{document}

$\downarrow \big\downarrow \Big\downarrow \bigg\downarrow \Bigg\downarrow \xdownarrow{2cm}$

\end{document}


You can use the same method also for \uparrow, \updownarrow, \Downarrow, \Uparrow and \Updownarrow.