TeX Quellcode:

\begin{array}{lcrcrcrcr} f(-1) &=& a \cdot (-1)^2 &+& b \cdot (-1) &+& c &=& 2 \cr f(0) &=& a \cdot 0^2 &+& b \cdot 0 &+& c &=& 4 \cr f(2) &=& a \cdot 2^2 &+& b \cdot 2 &+& c &=& 12 \end{array}