[NTG-context] large greek (math) font?

9 May 2007

      Hi, I'm trying to make slides in ConTeXt and needs larger font size.

However, in this example, the Phi is not showing up (works with 12/14pt)

\setupbodyfont[20pt]

\starttext

This is a greek letter $\Phi$

\stoptext

How can I get around that?

I also wanted to use sans font and found that modules amsl apparently resets
the font to rm.

Thanks,

Michael