When typing < or > in LaTeX and compiling with pdflatex, the less than and greater than symbols appear at upside down exclamation points. I'm not in math mode.
[Tex/LaTex] Why do the less than symbol (<) and the greater than symbol (>) appear wrong as upside down exclamation (¡) or question mark (¿)
font-encodingspunctuationsymbols
Related Solutions
You can define your own symbol:
\documentclass{article}
\usepackage{amsmath}
\DeclareMathSymbol{\subfactorial}{\mathord}{operators}{"3C}
\begin{document}
\begin{equation}
\begin{aligned}
n!=\sum_k h(n,k) &= \sum_k \binom{n}{k}(n-k)\subfactorial\\
&=\sum_k\binom{n}{k}k\subfactorial
\end{aligned}
\tag{5.49}
\end{equation}
\end{document}
This will work so long as the "operators" font is OT1 encoded. Should it be T1 encoded, change "3C" into "BD (this might depend on your font settings).
The equation (same number) is taken from "Discrete Mathematics", by Graham, Knuth and Patashnik (the original uses Euler fonts, but the result is quite similar).
The problem occurs because of a conflict between classicthesis and the fourier package, which is loaded because you've set Utopia as the Roman font. Set the Roman font to Default in Document --> Settings --> Fonts, and things should work fine.
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Best Answer
Geoffs tip with
\textlessand\textgreaterwill work well for you. However, you could type these symbols < and > directly in your editor and they would be correctly printed if you use the recommended font encoding, Cork resp. T1:Have a look at the T1 encoding table, search for the symbols < and >. Afterwards, open the OT1 encoding table, which is the default. At the two corresponding places you will find the upside down exclamation resp. quotation mark. That should explain it.
For further reasons, why you should use T1 encoding, have a look at this question: Why should I use \usepackage[T1]{fontenc}?
You should use a font supporting T1. For instance use the very good Latin Modern font, derived from the standard fonts:
Or install the
cm-superpackage which provides the standard Computer Modern fonts with T1 support.