TeX Quellcode:

\begin{array}{lcrcrcrcr} f(4) &=& a\cdot 4^2 &+& b\cdot 4 &+& c &=& 3 \cr f(2) &=& a\cdot 2^2 &+& b\cdot 2 &+& c &=& 0 \cr f(-5) &=& a\cdot \left(-5\right)^2 &+& b\cdot (-5) &+& c &=& 5{,}25 \end{array}