Alternative Equation Formats

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MathML

L = \sum_{i} w_{i} [r_{i} \ln (p_{i}) + (n_{i} - r_{i}) \ln (1 - p_{i})]

\[ L = \sum _ i w_ i[r_ i\ln (p_ i) + (n_ i - r_ i)\ln (1-p_ i)] \]