Quantum redactiones paginae "Aequationes Lagrangi" differant

ubi <math>\vec{x}</math> est particulae positio, ''q'' suum onus electricum, <math>\vec{v}= \dot{\vec{x}}</math> sua velocitas, <math> \phi [\vec{x},t]</math> tensio electrica in loco <math>\vec{x}</math> temporeque ''t'', et <math>\vec{A} [\vec{x},t]</math> potentiale vectorale.

 

 

:::<math>0 = - \frac{d}{d t}\left(\frac{m \dot{\vec{x}}} {\sqrt {1 - \frac{v^2}{c^2}}}\right) - q \nabla\phi [\vec{x},t] - q \partial_t{\vec{A}} [\vec{x},t]