deletions | additions       diff --git a/magnetoresistance.tex b/magnetoresistance.tex  index a968fa9..b84441d 100644  --- a/magnetoresistance.tex  +++ b/magnetoresistance.tex 
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\end{equation}  Substituting the components of $\mathbf{B}$, $\mathbf{E}$ and $\mathbf{j} = n q \mathbf{p} / m^*$ into the equation of motion for the charge carrier in the presence of a magnetic field \eqref{eq:eom-B} gives:  \begin{equation}  \tau \frac{d\mathbf{j}}{dt} = - \mathbf{j} + \sigma_0 \mathbf{E} + (\omega_\textrm{c} \tau) \mathbf{j} \cross \left(\frac{\mathbf{B}}{B} \right)  \end{equation}  where  \begin{equation}