Alternative Equation Formats

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MathML

\begin{array}{rcl} I (β) & = & - \frac{\partial^{2} l (β)}{\partial β^{2}} \\ = & \sum_{k = 1}^{K} \sum_{h i j \in D_{k}} {\tilde{w}}_{h i j} {\frac{S_{k}^{(2)} (β)}{S_{k}^{(0)} (β)} - [\frac{S_{k}^{(1)} (β)}{S_{k}^{(0)} (β)}] [\frac{S_{k}^{(1)} (β)}{S_{k}^{(0)} (β)}]^{'}} \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} \mc{I}(\bbeta ) & =& - \frac{\partial ^2 l(\bbeta )}{\partial \bbeta ^2}\\ & = & \sum _{k=1}^ K \sum _{hij \in \mc{D}_ k} \tilde{w}_{hij} \biggl \{ \frac{\mb{S}_ k^{(2)}(\bbeta )}{S_ k^{(0)}(\bbeta )} - \biggl [ \frac{\bS _ k^{(1)}(\bbeta )}{\mb{S}_ k^{(0)}(\bbeta )} \biggr ] \biggl [ \frac{\mb{S}_ k^{(1)}(\bbeta )}{\mb{S}_ k^{(0)}(\bbeta )} \biggr ]' \biggr \} \end{eqnarray*}