The truth is that, up to now, I have used a template that I created long ago to write my lecture notes. All seems OK, but the only thing that's been bothering me lately is that the integral sign in my equations is not curved (as it should), but it appears rigid and vertical, just like the left integral in this picture:
I really don't know what package I'm missing (or what package I'm importing that does this). I've read several manuals, but can't find the solution to my problem :-(. The packages that I import before the \begin{document}
are:
\documentclass[12pt]{article}
\usepackage{amssymb,amsmath,amsthm,mathabx,wrapfig}
\usepackage[spanish]{babel} % I'm writing lecture notes in spanish!
\usepackage[utf8x]{inputenc}
\usepackage[margin=1.25in]{geometry}
\usepackage{graphics,graphicx,ctable,booktabs}
\usepackage{ccaption}
\usepackage{fancyhdr}
How do I fix this problem?
mathabx
package is the culprit; load it as\usepackage[matha,mathb]{mathabx}
so that it won't change your integrals; but some symbols might not be available. Do you really need it? – egreg May 9 '12 at 8:15mathabx
with options should be an instruction of its own. – egreg May 9 '12 at 8:38