TeX Quellcode:
\begin{array}{rcl} \prod\limits_{k=1}^6(2k-7) &=& (2 \cdot 1-7)(2 \cdot 2-7)(2 \cdot 3-7)(2 \cdot 4-7)(2 \cdot 5-7)(2 \cdot 6-7) \cr &=& (-5) \cdot (-3) \cdot (-1) \cdot 1 \cdot 3 \cdot 5 \cr &=& -225 \end{array}