Dear ConTeXt folks,
I want to define `\abs` as the command for the absolute value. The
following minimal example is also attached.
\define\abs[1]{\lvert #1 \rvert}
\starttext
$\lvert 2 \rvert$
$\abs{2}$
\stoptext
This does not work though.
$ context abs
[…]
This is LuaTeX, Version beta-0.70.1-2011051923 (rev 4277)
\write18 enabled.
(abs.tex
ConTeXt ver: 2011.05.18 22:26 MKIV fmt: 2011.5.27 int:
english/english
[…]
! Missing $ inserted.
system > tex > error on line 1 in file abs.tex: Missing $
inserted ...
1 >> \define\abs[1]{\lvert #1 \rvert}
2 \starttext
3 $\lvert 2 \rvert$
4
5 $\abs{2}$
6 \stoptext
7
<inserted text>
$
<to be read again>
\Udelimiter
\lvert ->\Udelimiter
"4 "0 "7C
l.1 \define\abs[1]{\lvert
#1 \rvert}
?
How should I do that correctly? I took that example from the user’s
guide of the amsmath package (`texdoc amsldoc`).
Thanks,
Paul
\define\abs[1]{\lvert #1 \rvert}
\starttext
$\lvert 2 \rvert$
$\abs{2}$
\stoptext
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