doc/src/Eqs/min_energy.tex

   1 \documentclass[12pt]{article}
   2
   3 \begin{document}
   4
   5 \begin{eqnarray*}
   6 E(r_1,r_2, \ldots ,r_N) & = & \sum_{i,j} E_{\it pair}(r_i,r_j) +
   7                               \sum_{ij} E_{\it bond}(r_i,r_j) +
   8                               \sum_{ijk} E_{\it angle}(r_i,r_j,r_k) + \\
   9                            && \sum_{ijkl} E_{\it dihedral}(r_i,r_j,r_k,r_l) +
  10                               \sum_{ijkl} E_{\it improper}(r_i,r_j,r_k,r_l) +
  11                               \sum_i E_{\it fix}(r_i)
  12 \end{eqnarray*}
  13
  14 \end{document}
  15