[OS X TeX] \ifthenelse in \author ?

[Josep M.Font]

El 08 feb 2005, a las 0:37, Ross Moore escribió:

> Le 2 févr. 05, à 16:49, Josep M.Font a écrit :
>
>> By the way, I don't know if this is a bug or whatever: Inside 
>> \author{...} you can break a line with a \\, and even with a \\[1ex], 
>> but it disregards the additional space. But if you use \\[0.5ex] then 
>> \maketitle complains "missing number, treated as 0..."! Just being 
>> curious...
>
> Well, the logical meaning of \author is to indicate that it's argument
> refers to who is the author. It's only a happy accident that you can
> split this information across several lines, breaking at specified 
> places.

Oh, yes, your are right that in general such command has an important 
logical function, besides placing its contents through \maketitle... I 
was using a given template which used amsart, just to produce a 
one-page abstract. What surprised me is that both \\ and \\[1ex] 
worked, but the optional argument was disregarded, while \\[0.5ex] 
simply didn't. I have finally produced a hand-made template which does 
exactly what I want.

Thanks to Bruno and Ross for your constributions to our knowledge of 
TeX.

Josep Maria Font

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