User:Mars2035/test

Failed to parse (unknown function "\begin{align}"): {\displaystyle \begin{align} D(d, v) &= hd/m_{\text(e))}lv \\ f ' (x) &= 2x. \end{align} }

$\mathbf {F} _{\text{net}}={\mathrm {d} (m\mathbf {v} ) \over \mathrm {d} t}$

$\mathbf {F} =m\mathbf {a}$ $\mathbf {D} (d,v)=(\mathbf {h} ) \over mlv$