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Identity Matrix Symbol (double ones)

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Identity Matrix Symbol (double ones)

Postby haaj86 on Sat Aug 21st, 2010

Hi, how to type the identity matrix symbol (the double ones). I don't mean the
Code: Select all  •  Open in writeLaTeX
\mathbb{I}
symbol.

I can't also find it in the The Comprehensive LATEX Symbol List.

Please help!
Last edited by haaj86 on Sat Aug 21st, 2010, edited 1 time in total.
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Re: Identity Matrix Symbol (double ones)

Postby gmedina on Sat Aug 21st, 2010

Hi,

which symbol do you want exactly? Can you please provide a link to the exact symbol you're trying to find?
1,1,2,3,5,8,13,21,34,55,89,144,233,...
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Re: Identity Matrix Symbol (double ones)

Postby haaj86 on Sat Aug 21st, 2010

To be honest I usually use the big "I" to represent the indentity and most books uses this one. But I remember seeing this one:
identity.png
identity.png (850 Bytes) Viewed 28972 times

I drew this with paint because I can't find a webpage that uses it.

Thank you!


Edit by localghost: No external links (see Board Rules)! Attachments go onto the forum server (where applicable).
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Re: Identity Matrix Symbol (double ones)

Postby josephwright on Sat Aug 21st, 2010

Detexify says
Code: Select all  •  Open in writeLaTeX
\documentclass{article}
\usepackage{bbold}
\begin{document}
\(  \mathbb{1} \)
\end{document
}
Joseph Wright
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Re: Identity Matrix Symbol (double ones)

Postby haaj86 on Sat Aug 21st, 2010

Thanks Joseph! This is precisely what I'm looking for.
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Posts: 21
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