How to get this symbol (looks like a T or J)

Question

I've tried drawing this symbol in Detexify, but with no luck:

T pic

It's not \mathcal{TJ}: $\mathcal{TJ}$ or \mathscr{TJ}: $\mathscr{TJ}$.

I'm guessing it's a T from context in the textbook. It has the same height as a capital letter.

How do I produce this symbol in mathjax (where I'm writing my textbook notes) and $\LaTeX$?

Btw.: Do you know about http://detexify.kirelabs.org/classify.html ? It's really helpful for these kind of things... — Raven, Jun 22 '20 at 05:42
Does this answer your question? How to look up a symbol or identify a letter from a math alphabet or other character? — Henri Menke, Jun 22 '20 at 05:47
If you found this symbol in a PDF file you can also look up the properties of the document to see which fonts are being used. This might help you to narrow your search to symbols from these specific fonts. — Marijn, Jun 22 '20 at 07:46
Don't you recognise this? It looks like the Greek "tau" letter. — Dominique, Jun 23 '20 at 08:43

Denis · Answer 1 · 2020-06-22T14:04:21.903

13

The symbol is a scipt uppercase T in math mode. The package euscript should fit your needs. Try

\documentclass[12pt]{article}
\usepackage{amsmath}
\usepackage[mathcal]{euscript}
\begin{document}
\begin{equation*}
\mathcal{T}
\end{equation*}
\end{document}

to obtain

edited Jun 22 '20 at 14:04

answered Jun 22 '20 at 06:37

Denis

5,267

score 5 · Answer 2 · answered Jun 22 '20 at 09:03

5

Another very minimal example to obtain your symbol is:

\documentclass[a4paper,12pt]{article}
\usepackage{eucal}
\begin{document}
\[ \mathcal{T} \]
\end{document}

answered Jun 22 '20 at 09:03

Sebastiano

54,118

score 5 · Answer 3 · answered Jun 22 '20 at 14:07

As others have said, this is a calligraphic T in Euler script font. This font can also be loaded with the wonderful package mathalpha, which gives an easy way to use many calligraphic, script, fraktur and blackboard bold math fonts.

The Euler script font is associated to the \mathcal alphabet when loading mathalpha with option cal=euler. Here's a complete example.

\documentclass{article}
\usepackage[cal=euler]{mathalpha}
\begin{document}
\[ \mathcal{T} \]
\end{document}

How to get this symbol (looks like a T or J)

3 Answers3