What is this symbol, pictured below, which is used to denote sample space in probability theory, according to one textbook (UK's A-Level in Statistics from Edexcel).
And how to typeset it in Latex?
[Tex/LaTex] What symbol is this (sample space)
symbols
Related Solutions
To me this looks like a blackboard bold lowercase a. Specifically, it looks like the lowercase a from the bbold font.
For blackboard bold capitals you can use the \mathbb macro provided by the amsfonts or amssymb packages. But $\mathbb{a}$ gives a backwards G.
Instead, you need to load the whole bbold font. Here's a quick snippet to do that.
\documentclass{article}
\DeclareSymbolFont{bbold}{U}{bbold}{m}{n}
\DeclareSymbolFontAlphabet{\mathbbold}{bbold}
\begin{document}
$\mathbbold{a}$
\end{document}
See also Blackboard bold characters
The Comprehensive list shows a bundle of different \thorn symbols, depending on various packages.
The table below gives an example of some of the commands.
There might be some warnings, especially for the \itshape fontshape, since this shape is not available for all fonts/symbols
\documentclass{article}
\usepackage{mathtools}
\usepackage[T1]{fontenc}
\usepackage{tipa}
\usepackage{tipx}
\usepackage{wasysym}
\newcommand{\mythorntable}[1]{%
\begin{tabular}{ll}
\multicolumn{2}{c}{#1} \tabularnewline
fontenc & \TH~\th \tabularnewline
tipa & \textthorn \tabularnewline
tipx & \textthornvari~\textthornvarii~\textthornvariii~\textthornvariv \tabularnewline
wasysym & \thorn~\Thorn \tabularnewline
\end{tabular}
}
\begin{document}
\huge
\begin{tabular}{ll}
\mythorntable{Normal font}
&
\slshape
\mythorntable{Slanted}
\tabularnewline
& \tabularnewline
\sffamily
\mythorntable{Sans serif}
&
\itshape
\mythorntable{Italic}
\tabularnewline
& \tabularnewline
\begin{tabular}{ll}
\multicolumn{2}{c}{Math} \tabularnewline
fontenc & $\text{\sffamily\itshape\TH~\th}$ \tabularnewline
tipa & $\text{\sffamily\itshape\textthorn}$ \tabularnewline
\tabularnewline
\end{tabular} &
\end{tabular}
\end{document}
Best Answer
I think
\usepackage[cal=boondoxo]{mathalfa}and\mathcal{E}might come closest to the symbol you are after. This font is freely available.However, there is a font
mathpiwhich is a commercial font (see themathalfadocumentation for more information). This I believe is exactly the same font as in your picture.(from page 7 of the
mathalfadocumentation)