equation editor on MAC OSX

Hallo,
I search a software to edit mathematics formulas. I have to write the
formula along y axis and rotate of 90°. I use Equation Editor for
writing equations, but if I export the equation with copy/paste and I
try to rotate it, the image changes from vectorial to bitmap format
and it reduces the resolution.
Can someone help me?
I have tried with Illustrator but when I read EPS files the graphics
was wrong.
Thank you
Gabriele

In article <1175692776.653773.220560.RemoveThis@q75g2000hsh.googlegroups.com>,
"ggoogle" <gabumb.RemoveThis@gmail.com> wrote:

> Hallo,
> I search a software to edit mathematics formulas. I have to write the
> formula along y axis and rotate of 90°. I use Equation Editor for
> writing equations, but if I export the equation with copy/paste and I
> try to rotate it, the image changes from vectorial to bitmap format
> and it reduces the resolution.
> Can someone help me?
> I have tried with Illustrator but when I read EPS files the graphics
> was wrong.
> Thank you
> Gabriele

Read the EPS into GraphicConverter, first setting the preferences to
300dpi bitmap, so that it looks fine when printed, then rotate and save
as anything your drawing program imports.