Alternative Equation Formats

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MathML

w_{i j}^{(r)} = {\begin{cases} w_{i j} & if i th PSU is not in the donor stratum {\tilde{h}}_{r} \\ w_{i j} / α_{r} & if i th PSU is in the donor stratum {\tilde{h}}_{r} \end{cases}

Math Rendered as SVG

Math as LaTeX Source

\[ w^{(r)}_{ij}=\left\{ \begin{array}{ll} w_{ij} & \mbox{if }\mi{i}\mbox{th PSU is not in the donor stratum }\tilde h_ r \\ w_{ij}/\alpha _ r & \mbox{if }\mi{i}\mbox{th PSU is in the donor stratum }\tilde h_ r \end{array} \right. \]