Math & Science ⇒ character size in formula

[wayne]

Hello,

In a formula I want to increase the size of a greek letter (\alpha) but not the size of the other terms. I do not find anywhere how to do that...
Do you have any clue?

\begin{equation}
P = \alpha \: 0.5 R^0.7 + b
\end{equation}

Thanks

[frabjous]

You could use the \mathlarger command provided by the relsize package; iterate as many times you want to make it bigger and bigger:

Code: Select all

\documentclass{article}
\usepackage{relsize}
\begin{document}
\begin{equation}
P = \mathlarger{\mathlarger{\mathlarger{\alpha}}} \: 0.5 R^0.7 + b
\end{equation}
\end{document}

Another possibility may be a \scalebox from the graphicx package.

Some additional information may be found in this TeX SE question and answers.