TeX Quellcode:

\begin{array}{crcl} \text{I} & 2\cdot 1+6\cdot 2 &=& 14 \cr \text{II} & 1+6\cdot 2 &=& 13 \cr\cr \text{I} & 2+12 &=& 14 \cr \text{II} & 1+12 &=& 13 \cr\cr \text{I} & 14 &=& 14 \cr \text{II} & 13 &=& 13 \end{array}