Math & Science ⇒ '\DeclareMathSizes' with Sums/Integrals in Text

[Tomahawk]

Hello, I'm having problems adjusting the font size for \sum and \int.

Code: Select all

\documentclass[a4paper,DIV12,13pt,headsepline,largeheadings]{scrartcl}
\pagestyle{headings}
\usepackage[applemac]{inputenc}
\usepackage{lmodern}
\usepackage[ngerman]{babel}
\usepackage[intlimits, sumlimits]{mathtools}
\usepackage{amssymb}

\DeclareMathSizes{13}{15}{11}{10}

\begin{document}
\subsection*{Bemerkung zu Integralen von Treppenfunktionen}

In der Situation von Definition 1 ist $f \rightarrow \int f(x)dx$ eine lineare Abbildung vom Vektorraum $T(\mathbb{R}^n)$ der Treppenfunktionen auf $\mathbb{R}^n$ nach $\mathbb{R}$.

\end{document}

As you can see, the integral sign is way too small and isn't affected by \DeclareMathSizes{13}{15}{11}{10}

[Stefan Kottwitz]

It can be fixed by loading the esint package:

Code: Select all

\usepackage{esint}

The output becomes:

integral.png (6.33 KiB) Viewed 2496 times

Stefan