[Tex/LaTex] How to make large mathcal symbols

Question

I've seen bigints for big integral symbols, but I'd like to make a large \mathcal{F} for a Fourier transform. Is there a good way to do this?

Answer 1

You may use \scaleboxfrom the graphicx package:

\documentclass[11pt,a4paper]{article}
\usepackage{graphicx}
\newcommand*{\bigF}{\scalebox{1.5}{\ensuremath{\mathcal{F}}}}

\begin{document}
 \[
\bigF (\omega)=\int f(x)e^{i t x}dt
\]
\end{document}