[texhax] Italic correction

[Philip TAYLOR]

Reinhard Kotucha wrote:

> Phil, whenever something looks worse at low resolution, it *is* a
> rasterising issue.  In both file formats, DVI and PDF, the position
> of glyphs are described by coordinate pairs, i.e. by two numbers.
> These numbers are completely independent of the actual resolution.
> Even glyph descriptions in TTF, OTF, and Type1 fonts rely on
> coordinate pairs.  All what counts are these numbers.
>
> Of course, rounding errors are unavoidable at low resolutions.  Thus,
> whatever you see at low resolutions is absolutely meaningless.  Even
> if Michael re-arranges the TeX code, the result will be arbitrary at
> low resolutions.

Yes, but the whole point of asking <ichael to re-order the markup
was to try to /confirm/ the hypothesis that what he was experiencing
was no more than a rasterisation error.  If

$d^3=d\/^3=d{}^3$
$d\/^3=d{}^3=d^3$
$d{}^3=d^3=d\/^3$

all produce artifacts at the same screen position, we can be
almost certain that it is not the markup that is causing this,
as Michael originally believed, but rasterisation.

** Phil.