# Need to create a specific notation

I need a symbol as below.

How can I create it?

• Is that a capital lambda or a big wedge? Dec 14, 2017 at 14:35
• $$\Lambda{}^{\mathbf{a}}_{\mathbf{b}}$$? Dec 14, 2017 at 14:35
• @aidangallagher4 This is not exactly what I need. The wedge sign is too small and whatever I did to make it larger, it didn't work. Dec 14, 2017 at 14:40
• It’s unclear exactly what you’re looking for here, but if you want something which replicates exactly what you drew there, I’d look into tikz Dec 14, 2017 at 14:45
• Variable sized operators use special font characters. This group includes \sum, \prod, \int and \bigwedge among others. I did find a \bigcurlywedge and \bigwedgedot in the comprehensive symbol list. Are you sure you want to use a symbol no one else has ever used? Dec 14, 2017 at 16:19

I used tikz to create such an operator based on How to create my own math operator with limits?

However you might need to modify it accordingly to get it to look "good", since I used some random values for the dimensions.

\documentclass{article}
\usepackage{tikz}
\usepackage{amsmath}

\newcommand{\nwedge}
{\operatorname{\begin{tikzpicture}
\draw[line width=0.1mm] (0,0)--(0.2,0.6)--(0.4,0);
\draw[line width=0.1mm] (-0.06,0)--(0.06,0);
\draw[line width=0.1mm] (0.34,0)--(0.46,0);
\end{tikzpicture}}}

\makeatletter
\DeclareRobustCommand\bigop[1]{%
\mathop{\vphantom{\sum}\mathpalette\bigop@{#1}}\nolimits@
}
\newcommand{\bigop@}[2]{%
\vcenter{%
\sbox\z@{$#1\sum$}%
\hbox{\resizebox{\ifx#1\displaystyle.9\fi\dimexpr\ht\z@+\dp\z@}{!}{$\m@th#2$}}%
}%
}
\makeatother

\newcommand{\bigV}[2]{{\bigop{\nwedge}}^{\textrm{\textbf{#1}}}_{\textrm{\textbf{#2}}}}

\begin{document}
$\nwedge_{a}^b$  some random text $\bigV{a}{b}$

$\bigV{a}{b}$
\end{document}


The \nwedge command doesn't scale when used inline. The scaling is based on the \sum operator.