forked from lijiext/lammps
14 lines
208 B
TeX
14 lines
208 B
TeX
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\documentclass[12pt]{article}
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\begin{document}
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$$
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E=\sum_{ij}\phi(r_{ij})+\sum_{i}U(\rho_{i}),
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$$
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$$
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\rho_{i}=\sum_{j}\rho(r_{ij})+\sum_{jk}f(r_{ij})f(r_{ik})g[\cos(\theta_{jik})]
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$$
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\end{document}
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