Alternative Equation Formats

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MathML

\begin{array}{rcl} \hat{p_{o}} (Y = k + 1 | x) \equiv Pr (Y = k + 1 | x) & = & \frac{1}{1 + \sum_{l = 1}^{k} \exp ({\hat{η}}_{l})} \\ \hat{p_{o}} (Y = i | x) \equiv Pr (Y = i | x) & = & \hat{p_{o}} (Y = k + 1 | x) \exp (η_{i}), i = 1, \dots, k \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} \widehat{p_ o}(Y=k+1|\mb{x}) \equiv {\Pr }(Y=k+1|\mb{x}) & = & \frac{1}{1+\sum _{l=1}^{k} \exp ({\hat{\eta }_ l})} \\ \widehat{p_ o}(Y=i|\mb{x}) \equiv {\Pr }(Y=i|\mb{x}) & =& \widehat{p_ o}(Y=k+1|\mb{x}) \exp ({\eta _ i}), i=1,\ldots ,k \end{eqnarray*}