forked from lijiext/lammps
17 lines
525 B
TeX
17 lines
525 B
TeX
\documentclass[12pt]{article}
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\begin{document}
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\begin{eqnarray*}
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E_{i} & = & F_{\alpha} \left( \sum_{j \ne i} \rho(r_{ij}) \right) +
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\frac{1}{2} \sum_{j \ne i} \phi_{\alpha \beta} (r_{ij}) +
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\frac{1}{2} \sum_{i,s} \left( \mu_{i}^{s} \right)^2 +
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\sum_{i,s,t} \left( \lambda_{i}^{st} \right)^2 - \frac{1}{6} \nu_{i} \\
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\mu_{i}^{s} & = & \sum_{i \ne j} u(r_{ij}) r_{ij}^{s} \\
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\lambda_{i}^{st} & = & \sum_{i \ne j} w(r_{ij}) r_{ij}^{s} r_{ij}^{t} \\
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\nu_{i} & = & \sum_{s} \lambda_{i}^{ss}
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\end{eqnarray*}
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\end{document}
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