Ghlen Livid Deleted File  almost 8 years ago

Commit id: c34e7c53ac04e89db8848f5858001657ca6a2f8b

deletions | additions      

         

Or  $$ \frac{\vec{x}(t+2\Delta t) - \vec{x}(t)}{2 \Delta t} - \frac{\vec{x}(t+\Delta t) - \vec{x}(t-\Delta t)}{2 \Delta t} = \frac{\vec{a}(t) + \vec{a}(t + \Delta t)}{2} \Delta t $$  $$ \vec{x}(t+2\Delta t) - \vec{x}(t) - \vec{x}(t+\Delta t) + \vec{x}(t-\Delta t) = (\vec{a}(t) + \vec{a}(t + \Delta t)) \Delta t^2 $$