10 lines
221 B
TeX
10 lines
221 B
TeX
\documentclass[12pt]{article}
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\begin{document}
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\thispagestyle{empty}
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\begin{eqnarray*}
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E &=& \frac{q_i q_j \mathrm{erf}\left( r/\sqrt{\gamma_1^2+\gamma_2^2} \right) }{\epsilon r_{ij}}
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\end{eqnarray*}
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\end{document}
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