TeX Quellcode:

\begin{array}{rcl} -f(-x) &=& - \left( \dfrac{5}{2} (-y)^3 + \dfrac{38}{9} (-y) \right) \cr \cr &=& -\left( - \dfrac{5}{2} y^3 - \dfrac{38}{9} y \right) \cr \cr &=& \dfrac{5}{2} y^3 + \dfrac{38}{9} y \cr \cr &=& f(x) \end{array}