Test of math typesetting

[Mike Lacy]

\[LL = \sum\limits_{i = 1}^{N - 1} {\sum\limits_{j = i + 1}^N {{a_{ij}}\ln ({P_{ij}}) + } } \left( {K - {a_{ij}}} \right)\ln \left( {1 - {P_{ij}}} \right)\]