On Thu, Jul 16, 2009 at 6:32 PM, Andrei Dragomir <adragomir@gmail.com>wrote:

> I am using context minimals, with the simpleslides module to
> make a presentation.
>
> I noticed that when typesetting math formulas, I get missing characters.
>
> I finally tracked it down to an issue (stupidity from me?) with the
> "context" executable.
>
> I made a new file, with some example math markup, posted below
> ----------
> \starttext
>
> And this is some maths with PostScript fonts.
> \startformula
> {a \over b} = {c \over d} \iff ad - bc = 0,
> \qquad \int_0^{2\pi}\!\!\! \sin^2(x)dx =\pi,
> \qquad {\rm e}^{{\rm i}\pi} + 1 = 0,
> \qquad \sum_{k=1}^{\infty}{1 \over k^2} = {\pi^2 \over 6}.
> \stopformula
> Some ligatures: ffi, ffl.
>
> \stoptext
> -----------
>
My log says :
Missing character: There is no ⟺ (U+27FA) in font LMMath12-Regular!

-- 
luigi