# Is there a short diagonal pointing arrow symbol?

I understand that the package stmaryrd has a shorter version of the \rightarrow, \shortrightarrow, I wonder if there's a short version of the diagonal arrows (e.g. \searrow) and if not, if there's an easy way to draw my own?

You can rotate the short right arrow; however, due to a quirk in the font, rotation needs to artificially increase the height of the symbol. The picture shows its bounding box; the black blob shows that the arrow stem is on the math axis, so to get symmetric placement one needs to double the height.

\documentclass{article}
\usepackage{amsmath,stmaryrd,graphicx}

\makeatletter
\newcommand{\fixed@sra}{$\vrule height 2\fontdimen22\textfont2 width 0pt\shortrightarrow$}
\newcommand{\shortarrow}[1]{%
\mathrel{\text{\rotatebox[origin=c]{\numexpr#1*45}{\fixed@sra}}}
}
\makeatother
\begin{document}

$a\shortrightarrow a$ % the base symbol

% the following is just to show the bounding box
{\vrule width 4pt height \fontdimen22\textfont2 \fboxsep=0pt\fbox{$\shortrightarrow$}}

% The usage example
$a\shortarrow{0} a\shortarrow{1} a\shortarrow{2} a\shortarrow{3} a\shortarrow{4} a\shortarrow{5} a\shortarrow{6} a\shortarrow{7} a$
\end{document}


Using tikz (fingers crossed)

\documentclass{minimal}
\usepackage{tikz}
\usepackage{mathtools}
\newcommand{\myarrow}[1][-45]{%
\mathrel{%
\text{$\begin{tikzpicture}[baseline = -0.5ex] \node[inner sep=0pt,outer sep=0pt,rotate = #1] (a) at (0,0) {$\xrightarrow{}$}; \end{tikzpicture}$}%
}%
}%

\begin{document}
$A \myarrow T_{A \myarrow T_{A \myarrow T}}$
$A \myarrow[45] T_{A \myarrow[45] T_{A \myarrow[45] T}}$
$A \myarrow[135] T_{A \myarrow[135] T_{A \myarrow[135] T}}$
$A \myarrow[-135] T_{A \myarrow[-135] T_{A \myarrow[-135] T}}$

\end{document}


I am not sure about the vertical placement. For this [baseline = -0.5ex] may be adjusted.