15 questions linked to/from Blackboard bold characters
46k views

### Best way to typeset the identity operator, or unit? [duplicate]

Possible Duplicate: Blackboard bold characters I have seen the unit (or identity operator) typeset via \newcommand{\unit}{1\!\!1} Is this really the best way to get a double-stroke 1? The ...
23k views

### How do I make a blackboard 1? [duplicate]

Possible Duplicate: Blackboard bold characters I want to make a blackboard "1" character to show an indicator variable, but $\mathbb{1}$ doesn't work. How do I do it?
339 views

### \mathbb gives strange results when using numbers [duplicate]

LaTeX command \mathbb gives strange results when using numbers. For example, \mathbb{1} prints an unintended symbol. There was a previous question on this topic whose solution involved using the \...
250 views

### \mathbb{0} and \mathbb{1} without affecting \mathbb{R} and \mathbb{N} [duplicate]

Possible Duplicate: Blackboard bold characters I want to write the numbers 0 and 1 in mathbb mode (inside some blockmatrices). So far the best way that I found is to use the bbold package. I have ...
85 views

### Is there a blackboard version of Omega (the capital letter) [duplicate]

Is there a way to write a blackboard version of the Greek capital letter Omega in LaTeX?
29 views

### How to write “conditional one” in Latex [duplicate]

I want to write a "conditional one" in Latex but I don't know the precise name. It is a one with a double vertical dash that is equal to 1 if a condition is satisfied and 0 otherwise (a kind of ...
10k views

### Blackboard bold variants for Greek letters

It is common (or it used to be) to use a blackboard-bold variant of \mu to denote roots of unity in some mathematical papers. However, despite searching (several times, periodically over several ...
2k views

### What symbol is this?

I need the command to display this symbol in LaTeX or, at least, its name. I guess it’s from some kind of a mathematical or informatics discipline. I saw it in article called “A comparison of ...
3k views

### How to use \bigtimes without pain

I've been fighting with mathabx lately and it's not really worth my time, so I tried switching to MnSymbol which also modifies some of my regular symbols. Is the best solution just to make my own ...
9k views

### Typesetting the Identity Operator for txfonts

I use the txfonts package in my document for fonts. However, I am at a loss as to how to produce the identity operator, which looks like a blackboard bold 1. Now, \documentclass{article} \...
2k views

### Is mathbb an abbreviation for something?

What does mathbb stand for? Is it short for something else? I searched online and couldn't find a definition, only information about usage.
568 views

### How to use mathbbol only for greek and lowercase

I would like to use the mathbbol for all blackboard fonts that aren't already contained in the usual \mathbb command: this includes lower case, greek (both lower and upper case) letters, digits, and ...
421 views

### Font selection problem

I need a blackboard bold 1. I know the font bbold provides it along with 0, but if I declare the math alphabet via: \DeclareSymbolFond{bbold}{U}{bbold}{m}{n} \DeclareMathAlphabet{\bbold}{bbold} or ...