### LaTeX users online

In total there are**4**users online :: 0 registered, 0 hidden and 4 guests (based on users active over the past 5 minutes)

Most users ever online was

**1327**on Tue Nov 05, 2013 7:11 pm

Users browsing this forum: No registered users and 4 guests

### LaTeX blog world

TeXdoc.net updated (Stefan)TUG 2016 reports (Norbert)

TUG 2016 in Toronto - Arriving and first excursion (Stefan)

Define new macros for logical markup (Tobi)

Finding typefaces (fonts) (Tobi)

Order of float placement parameters (Tobi)

Changes and News (Clemens)

What's new in chemmacros v5.6? (Clemens)

Lass Dich nicht von einem Hobby stressen! (Markus)

Das "Currentfile" Paket (Uwe)

TeX Live 2016 released (Stefan)

How to Deal with Wide Tables (Lian Tze Lim)

Get TeX Live 2016 now (Tobi)

LyX 2.2 released (Stefan)

Point vs. Big Point (Tobi)

Programming network switches and routers using TeX (Stefan)

## Identity Matrix Symbol (double ones)## LaTeX Forum: Fonts & Character SetsAdd tags
5 posts
• Page
1 of 1
Hi, how to type the identity matrix symbol (the double ones). I don't mean the
- Code: Select all • Open in online LaTeX editor
`\mathbb{I}`
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.
- haaj86
**Posts:**21**Joined:**Mon Apr 6th, 2009
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:
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). - haaj86
**Posts:**21**Joined:**Mon Apr 6th, 2009
Detexify says
- Code: Select all • Open in online LaTeX editor
`\documentclass{article}` \usepackage{bbold} \begin{document} \( \mathbb{1} \) \end{document}
Joseph Wright
- josephwright
- Site Moderator
**Posts:**813**Joined:**Tue Jul 1st, 2008
5 posts
• Page
1 of 1
Return to Fonts & Character Sets ## LaTeX users onlineUsers browsing this forum: No registered users and 4 guests |