Alternative Equation Formats

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MathML

\begin{array}{rcl} \frac{\partial p_{o} (Y = i | x)}{\partial η_{j}} = {\begin{cases} p_{o} (Y = i | x) (1 - p_{o} (Y = i | x)) & j = i \\ - p_{o} (Y = i | x) p_{o} (Y = j | x) & otherwise \end{cases} \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} \frac{\partial p_ o(Y=i|\mb{x})}{\partial \eta _ j} = \left\{ \begin{array}{ll} p_ o(Y=i|\mb{x})(1-p_ o(Y=i|\mb{x})) & j=i \\ -p_ o(Y=i|\mb{x})p_ o(Y=j|\mb{x}) & \textrm{otherwise} \end{array} \right. \end{eqnarray*}