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diff --git a/doc/Eqs/pair_meam.tex b/doc/Eqs/pair_meam.tex
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+\documentclass[12pt]{article}
+
+\begin{document}
+
+$$
+  E = \sum_i \left\{ F_i(\bar{\rho}_i)
+      + \frac{1}{2} \sum_{i \neq j} \phi_{ij} (r_{ij}) \right\}
+$$
+
+\end{document}
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+\documentclass[12pt]{article}
+
+\begin{document}
+
+$$
+   P = \frac{N k_B T}{V} + \frac{\sum_{i}^{N} r_i \bullet f_i}{3V}
+$$
+
+\end{document}
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