Alternative Equation Formats

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MathML

\begin{array}{rcl} a_{i} & = & \prod_{j = 1}^{i} \frac{n_{j}}{n_{j} + 1} \\ a_{i}^{*} & = & \prod_{j = 1}^{i} \frac{n_{j} + 1}{n_{j} + 2} \\ S_{i} & = & \sum_{(α : t_{(i + 1)} > t_{α} > t_{(i)})} z_{α} z_{α}^{'} \\ x_{i} & = & 2 z_{(i)} + \sum_{(α : t_{(i + 1)} > t_{α} > t_{(i)})} z_{α} \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} a_ i & = & \prod _{j=1}^ i \frac{n_ j}{n_ j + 1} \\[0.05in] a_ i^* & = & \prod _{j=1}^ i \frac{n_ j + 1}{n_ j + 2} \\[0.05in] \Strong{S}_ i & = & \sum _{(\alpha :t_{(i+1)} > t_{\alpha } > t_{(i)})} \Strong{z}_{\alpha } \Strong{z}_{\alpha }^{\prime } \\[0.05in] \Strong{x}_ i & = & 2 \Strong{z}_{(i)} + \sum _{(\alpha :t_{(i+1)} > t_{\alpha } > t_{(i)})} \Strong{z}_{\alpha } \\ \end{eqnarray*}