\define[1]\command or \define\command[1]? (was: math: command for absolute value: `\define\abs[1]{\lvert #1 \rvert}` throws `\lvert ->\Udelimiter`.)

[Paul Menzel <paulepanter@users.sourceforge.net>]

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Dear Otared,


Am Samstag, den 04.06.2011, 23:59 +0200 schrieb Otared Kavian:

> I think the error comes from your way of using \define: you use
> 	 \define\abs[1]{\lvert #1 \rvert}
> instead of
> 	\define[1]\abs{\lvert#1\rvert}
> 
>  the following works fine for me:
> 
> \starttext
> 
> %\define[1]\abs{|#1|} % this works
> 
> \define[1]\abs{\lvert#1\rvert} % this works too
> 
> $\abs{-1} = 1$
> \stoptext

thank you very much for the solution. I took my definition from the Wiki
[1].

Could the developers please clarify the correct syntax so that it can be
updated in the source or the Wiki.


Thanks,

Paul


[1] http://wiki.contextgarden.net/Reference/en/define

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