Alternative Equation Formats

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MathML

λ = \frac{\sum_{i} r_{i} + \sum_{j} c_{j} - r - c}{2 n - r - c} = \frac{w - v}{w}

\[ \lambda = \frac{\sum _ i r_ i + \sum _ j c_ j - r - c}{2n - r - c} = \frac{w - v}{w} \]