[texhax] placing a rule against the top (or bottom) edge of a page

Thu Nov 19 13:50:11 CET 2009

```On Nov 18, 2009, at 12:43 PM, William Adams wrote:

> The centerline of the rule falls 1.096bp short of the top of the
> page --- why?

Paul (zappathustra) on comp.text.tex was kind enough to clue me in to
my overlooking \topskip

All fixed now, save for working out why a rounding error induced
preview glitch happens in TeXShop and Preview.app on Mac OS X.

William

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