Christoffelsymbole

${\mathrm{\Gamma }}_{\nu \rho }^{\mu }=\frac{1}{2}{g}^{\mu \alpha }\left({\partial }_{\rho }{g}_{\alpha \nu }+{\partial }_{\nu }{g}_{\alpha \rho }-{\partial }_{\alpha }{g}_{\nu \rho }\right)$