[OS X TeX] \ifthenelse in \author ?

[Bruno Voisin]

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...

Very often this error message indicates that a fragile command is used 
and needs to be protected. Also, does \author{\protect\ifthenelse{...}} 
fix your problem?

Bruno Voisin

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