Alternative Equation Formats

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MathML

\begin{array}{rcl} Q_{k r}^{(a)} (β) & = & \sum_{h i j \in R_{k}} {\tilde{w}}_{h i j} \exp (β^{'} Z_{h i j} (t_{k})) Z_{h i j, r} (t_{k}) [Z_{h i j} (t_{k})]^{\otimes a} \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} \mb{Q}_{kr}^{(a)}(\bbeta ) & =& \sum _{hij \in \mc{R}_ k} \tilde{w}_{hij} \exp \bigl ( \bbeta '\bZ _{hij}(t_ k) \bigr ) Z_{hij,r}(t_ k) [\bZ _{hij}(t_ k)]^{\otimes a} \end{eqnarray*}