could anyone please tell me how I can write "ℰ" in latex in both text and math enviroment? I have already tried $\mathscr{E}$ and $\mathcal{E}$, but none of those are satisfying.
What I want to have is

but not any of these

could anyone please tell me how I can write "ℰ" in latex in both text and math enviroment? I have already tried $\mathscr{E}$ and $\mathcal{E}$, but none of those are satisfying.
What I want to have is

but not any of these

Here are 3 more script fonts for which there exists a LaTeX package (in math mode): Dutchcal(from the esstix 13 font), Boondox (from the stix fonts) (two variants) and Adobe's Bickham. All exist in regular and boldface. The following code allows to test them, commenting and uncommenting the relevant lines:
\documentclass[12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{dutchcal}
%\usepackage{boondox-cal}
%\usepackage{boondox-calo}
%\usepackage{bickham}
\pagestyle{empty}
\begin{document}%
\textbf{Dutchcal: }
%\textbf{boondox-cal}
%\textbf{boondox-calo}
%\textbf{bickham}
$ \begin{array}[t]{c@{\quad}c}
\verb+ \mathcal + & \verb+ \mathbcal + \\[6pt]
\mathcal{E} & \mathbcal{E}
\end{array} $
\end{document}




I wouldn't bother, so long as the symbol is a script E. However, here's a way to get the symbol you like; in the second line I show the character resulting with \mathscr (package mathrsfs).
\documentclass{article}
\usepackage{amsmath}
\usepackage{mathrsfs}
\DeclareFontFamily{U}{calligra}{}
\DeclareFontShape{U}{calligra}{m}{n}{<->callig15}{}
\newcommand{\calE}{{\!\!\text{\usefont{U}{calligra}{m}{n}E}\,\,}}
\begin{document}
Here is a $\calE$ (script E)
Here is a $\mathscr{E}$ (script E)
\end{document}

And here two versions with free fonts with use of the fontspec and unicode-math package.
These are mathematical symbols, so you will have to suround them by $ $ or alike. But with fontspec you may load any font you like as main font and use it for your text as well.
% arara: lualatex
\documentclass{article}
\usepackage{unicode-math}
\usepackage{fontspec}
\begin{document}
\noindent
\setmathfont{xits-math}
$\mscrE\mbfscrE$ (XITS Math)\\
\setmathfont{asana-math}
$\mscrE\mbfscrE$ (Asana Math)
\end{document}

mathrsfsand type$\mathscr{E}$if in text mode and\mathscr{E}if already in math mode. – Mico Jun 26 '14 at 15:50