TeX lähde:

\lambda = h/(mv) = \frac{6,62607004 \cdot 10^{-34}~\mathrm{m}^2\mathrm{kg/s}}{0,400~\mathrm{kg} \cdot 50000/3600~\mathrm{m/s}} = 1,19269 \cdot 10^{-34}~\mathrm{m}.