# Curly Calligraphic capital A? [duplicate]

I'm writing my final work of the career, but I can't find how to write this symbol.

It's like a weird "a" before (θ, ϕ).

Thank you so much!

• Have a look at “How to look up a symbol?” for ideas how you can easily find a particular symbol. Jul 6 '17 at 11:03
• Welcome to TeX.SX! It's not a weird symbol: it's an “A” in a calligraphic font. Use \mathcal{A} and you'll be OK even if the shape is different. Jul 6 '17 at 11:03
• It would be much more helpful to your career if you skip such arcane notation in my humble opinion. Jul 6 '17 at 12:44
• Looks also a little like \mathcal{a} from mtpro2, but that's a commercial font. (i.e. not free)
– Troy
Jul 6 '17 at 13:28
• i.imgur.com/JkJwK7x.gif Feb 20 '19 at 10:08

The closest I could find is TypoUprightBT:

    \documentclass[12pt]{article}
\usepackage{amsmath}
\usepackage{fontspec}
\pagestyle{empty}
\newfontfamily{\uprightcal}{TypoUpright BT}

\begin{document}%

$\text{\uprightcal{A}}\mkern1mu(\theta, \phi)$

\end{document}


• In unicode-math, you can either \setmathfont[range=cal]{TypoUpright BT} and use it as \mathcal{A} or \setmathfontface\uprightcal{TypoUpright BT} and use \uprightcal{A} (which no longer requires \text). Feb 23 '19 at 1:41

The A of your image might seem the same of full mt2pro package:

\documentclass[12pt]{book}
\usepackage[mtpccal]{mtpro2}
\begin{document}
$\mathcal{A}(\theta,\phi)$
\end{document}


I think the letter has been retouched to get bold with an external program that uses TrueType fonts. In the image you can see that in the character map there is the bold font (MT2MCS):

• From where you got mtpro2? Feb 20 '19 at 21:17
• @Sigur From the guide https://pctex.com/files/managed/1/1b/mtpro2Abbrev.pdf pag. 7. Feb 20 '19 at 21:25