forked from lijiext/lammps
17 lines
503 B
TeX
17 lines
503 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\neq i} \rho_\beta (r_{ij}) \right) + \frac{1}{2} \sum_{j\neq i}\phi_{\alpha\beta}(r_{ij})+ \frac{1}{2} \sum_s (\mu_i^s)^2 + \frac{1}{2} \sum_{s,t} (\lambda_i^{st})^2 - \frac{1}{6} \nu_i^2 \\
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%
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\mu_i^s & = & \sum_{j\neq i}u_{\alpha\beta}(r_{ij})r_{ij}^s\\
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%
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\lambda_i^{st} & = & \sum_{j\neq i}w_{\alpha\beta}(r_{ij})r_{ij}^sr_{ij}^t\\
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%
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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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