The two packages conflict, as can be seen in this MWE:
\documentclass{article}
\usepackage{steinmetz}
\usepackage{cancel}
\begin{document}
$\cancelto{0}{a+b}$
\end{document}
When the steinmetz package is loaded, the cancel arrow is misplaced:
How can this conflict be prevented?
\listfilesat the very beginning (even before\documentclass) and inspect the logfile for outdated package versions. – lockstep Mar 5 '11 at 16:35\listfilesare: ` cancel.sty 2000/03/12 v2.1 Cancel math terms steinmetz.sty 2009/06/14 v1.0 Steinmetz symbol for electrotechnics` – Seamus Mar 5 '11 at 16:41pict2e(you can test withpict2einstead ofsteinmetz.steinmetzloadspict2enow I don't know why there is a problem withpict2e. I think like me you have 0 above + and not at the end of the arrow. – Alain Matthes Mar 5 '11 at 16:51