\begin{pspicture}(-0.1,-0.1)(7.5,1.85)

%\psgrid(0,0)(7.5, 2)

\rput[l](0.5,1.6){$\vec a \rnode{a}\times \vec b = \left( {a_2 b_3  - a_3 b_2 ,a_3 b_1  - a_1 b_3 ,a_1 b_2  - a_2 b_1 } \right)$}


\rput[l](0.5,0.6){"Kr\Rnode[e]{ae}euz"} \rput[l](0.25,0.1){Kreuzprodukt}

%\nccurve[angleA=0]{->}{ae}{a} %\ncbar[nodesep=1pt]{->}{ae}{a} \ncline[arrows=->,linecolor=red]{ae}{a} \end{pspicture}
