[texhax] Extra space above multline (Bug in amsmath?)

[Plamen Tanovski]

Hi,

and thanks for the fast reply. 

> If we compare it to the gather environment we notice the following:
> \gather@ also applies \jot to \lineskip and friends but in the measuring
> phase, \gmeasure@ locally resets \everycr. \multline@ also applies \jot
> but \mmeasure@ does not reset \everycr so the extra \jot we see is
> inserted in the measuring phase. Adding a
>   \everycr={}%
> right after
>   \setbox\@ne\vbox{%
> in \mmeasure@ seems to take care of the problem. Attached is a small
> testfile.

Yes, the fix works. May be you should include it in your excellent
mathtools package.

Best regards

-- 
Plamen Tanovski
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Tel. (03 41) 3 08 57 60