[texhax] \hline in align environment

[Morten Høgholm]

On Wed, Jan 7, 2009 at 1:16 PM, Herbert Voss <Herbert.Voss at fu-berlin.de> wrote:
> Philip TAYLOR (Ret'd) schrieb:
>> Very interesting : it works with your "AMSart" class [1],
>> but not with
>>
>>       \documentclass{minimal}
>>       \usepackage {AMSmath}
>
> \documentclass{article}
> \usepackage{amsmath}
>
> works

because minimal.cls is truly minimal. article.cls sets \arrayrulewidth
= 0.4pt. The line just has zero height in minimal.cls.


-- 
Morten