# \pounds misbehaving with the eulervm package even in T1 encoding

I am teaching a probability course involving lots of gambling and hence, since I'm in the UK, I would like to use £ in some formulae. I use utf8x input enconding, T1 font encoding and the eulervm maths fonts. Nevertheless, £ inside math-mode comes out like a dollar sign.

Here's a minimum working example:

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[utf8x]{inputenc}
\usepackage[small]{eulervm}

\begin{document}

A gambler wins $£1$ with probability $p$ and loses $£1$ with probability $1-p$.

\end{document}


Commenting out the line which calls the eulervm package works, but I really like the eulervm fonts, so any help would be immensely appreciated.

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In the meantime I'm putting the £ outside math-mode, so it's not as if this is critical, but I would like to know the answer. –  José Figueroa-O'Farrill Mar 11 '12 at 22:31

I would recommend using utf8 instead of utf8x and of leaving £ outside of math mode, to which it doesn't belong.

If you want to use it in math mode you have to teach how to LaTeX

## Method A (utf8 option):

\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\DeclareUnicodeCharacter{00A3}{\text{\textsterling}}


## Method B (utf8x option):

\usepackage[utf8x]{inputenc}
\usepackage{amsmath}
\makeatletter
\uc@dclc{163}{default}{\text{\textsterling}}
\makeatother

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Thanks. I am undecided about leaving the £ outside of math mode. I tend to agree that they detract from the maths, yet at the same the currency is a system of units and just as in physics formulae, the units are often part of the equation. –  José Figueroa-O'Farrill Mar 11 '12 at 22:48
One question: why do you recommend utf8 instead of utf8x? I must admit I forgot why I made that choice when I thought about that problem. –  José Figueroa-O'Farrill Mar 11 '12 at 22:49
utf8x is not maintained and it's incompatible with some packages, notably biblatex. –  egreg Mar 11 '12 at 22:52
Ah, I didn't know -- thanks! –  José Figueroa-O'Farrill Mar 11 '12 at 23:01