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I need a symbol as below.

enter image description here

How can I create it?

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Hedayat Mahdipour
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    Is that a capital lambda or a big wedge? – daleif Dec 14 '17 at 14:35
  • $$\Lambda{}^{\mathbf{a}}_{\mathbf{b}}$$? – aidangallagher4 Dec 14 '17 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. – Hedayat Mahdipour Dec 14 '17 at 14:40
  • @daleif No matter what it is, until the result is reasonably similar to the image I inserted. – Hedayat Mahdipour Dec 14 '17 at 14:41
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    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 – aidangallagher4 Dec 14 '17 at 14:45
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    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? – John Kormylo Dec 14 '17 at 16:19
  • I recommend you change the question title to something more descriptive, such as "Serifed big wedge operator" or "Big wedge operator with serifs" (or whatever the actual name of the operator is). – Nicola Talbot Dec 14 '17 at 18:53

1 Answers1

2

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.

enter image description here

Ilbant
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