Alternative Equation Formats

The equation on this page is available in multiple formats. Depending on your browser, some formats might not render correctly.

MathML

r_{i} = {\begin{cases} 1, & log-rank \\ N_{1} (i) + N_{2} (i), & Gehan \\ \sqrt{N_{1} (i) + N_{2} (i)}, & Tarone-Ware \end{cases}

Math Rendered as SVG

Math as LaTeX Source

\[ r_ i = \left\{ \begin{array}{ll} 1, & \mbox{log-rank} \\ N_1(i) + N_2(i), & \mbox{Gehan} \\ \sqrt{N_1(i) + N_2(i)}, & \mbox{Tarone-Ware} \\ \end{array} \right. \]