Fonts & Character Sets ⇒ Math and phonetic character

[stefan_fuglsang]

Hi
I try to use phonetic and math characters in the same document, but only the phonetic characters will show (e.g. $\pm$ does not show). Also certain letter combinations in the normal text disappears (e.g. 'ff' does not show in the word 'affricative').

How can this be solved?


My preamble is
\documentclass[11pt]{article}
\usepackage[english,danish]{babel}
\usepackage{t1enc}
\usepackage[latin1]{inputenc}
\usefont{T1}{ptm}{m}{n}
\usepackage[T1]{tipa}
\usepackage{pxfonts} % Public Times New Roman text & math font

[stefan_fuglsang]

... and here is an example:

\documentclass[11pt]{article}
\usepackage[english,danish]{babel}
\usepackage{t1enc}
\usepackage[latin1]{inputenc}
\usefont{T1}{ptm}{m}{n}
\usepackage[T1]{tipa}
\usepackage{pxfonts}

\begin{document}
$\pm$ \\ % does not show
[\textipa{\|c{\textdyoghlig}}] \\ %is shown
affricative %where is ff ?
\end{document}

[stefan_fuglsang]

I got some help elsewhere.
Apparently the pxfonts package is incompatiple with other font packages?

My new preamble and example is now

\documentclass[a4paper,11pt]{article}
\usepackage[latin1]{inputenc}
\usepackage[english, danish]{babel}
\selectlanguage{danish}
\usepackage{tipa}
\usepackage{tipx}
\usepackage[T1]{fontenc}
\usepackage{mathptmx} % rm & math

\begin{document}

$\pm$ \\ % is shown
\[\textipa{\|c{\textdyoghlig}}\] \\ %is shown
affricative %ff is alright ?

\end{document}