答案1
答案2
答案3
blkarray
一个带有、yhmath
(用于其\adots
命令)和\upuparrows
的符号的解决方案amssymb
:
\documentclass[a4paper]{article}
\usepackage{mathtools, amssymb, yhmath, blkarray}
\newcommand\eqdef{\ensuremath{\stackrel{\text{def}}{ = }}}
\begin{document}
\[ 2\upuparrows k\eqdef
\raisebox{.15\height}{$ \begin{blockarray}{@{}c<{\mskip-4mu}\Right{\}}{$\scriptstyle k $}} 2^{2^{2^{\adots^{\raisebox{-1.25\height}{$\scriptscriptstyle 2 $}}}}}
\end{blockarray} $}
\]%
\end{document}