TeX Quellcode:
\begin{array}{rcl}\displaystyle\int \limits_t^{2t} (6x-1) \, dx &=& \left[3x^2-x\right]_t^{2t} \cr \cr &=& 3\cdot 4t^2-2t-\left(3t^2-t\right) \cr \cr &=& 9t^2-t \end{array}