Someone wrote Z = ∑ n ∞ ε − β E n {\displaystyle Z=\sum _{n}^{\infty }\mathbf {\varepsilon } ^{-\beta E_{n}}\;} for the partition function for #1. I have Z = ∑ n ∞ e − β E n {\displaystyle Z=\sum _{n}^{\infty }\mathbf {e} ^{-\beta E_{n}}\;} . Which is correct? KimberlyWynne 23:35, 15 April 2009 (EDT)
