Alternative Equation Formats

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MathML

\begin{array}{rcl} Δ_{α / 2} = {\begin{cases} 100 (1 - α / 2) th percentile point of a standard normal distribution z_{α / 2} & if DF=INFINITY \\ 100 (1 - α / 2) th percentile point of a t distribution t_{α / 2} & otherwise \end{cases} \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} \Delta _{\alpha /2}= \left\{ \begin{array}{ll} 100(1-\alpha /2)\mbox{th percentile point of a standard normal distribution } z_{\alpha /2} & \mbox{if DF=INFINITY} \\ 100(1-\alpha /2)\mbox{th percentile point of a } t \mbox{ distribution } t_{\alpha /2} & \mbox{otherwise} \end{array} \right. \end{eqnarray*}