forked from lijiext/lammps
11 lines
323 B
TeX
11 lines
323 B
TeX
\documentclass[12pt]{article}
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\begin{document}
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$$
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E =
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q_iq_j \left[ \frac{\mbox{erfc} (\alpha r)}{r} - \frac{\mbox{erfc} (\alpha r_c)}{r_c} +
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\left( \frac{\mbox{erfc} (\alpha r_c)}{r_c^2} + \frac{2\alpha}{\sqrt{\pi}}\frac{\exp (-\alpha^2 r^2_c)}{r_c} \right)(r-r_c) \right] \qquad r < r_c
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$$
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\end{document}
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