Dear ConTeXt folks, Am Sonntag, den 05.06.2011, 12:11 +0200 schrieb Paul Menzel: > 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. I am sorry. I messed up and confused the LaTeX syntax (?) (`texdoc amsldoc`) and the one in the Wiki. I am sorry for the noise. Thanks, Paul > [1] http://wiki.contextgarden.net/Reference/en/define