Alternative Equation Formats

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MathML

{\hat{σ}}^{2} ({\hat{Λ}}_{F} (t, ξ)) = e^{2 {\hat{β}}^{'} ξ} \sum_{t_{i} \leq t} {\sum_{k = 1}^{d (t_{i})} \frac{1}{[S_{E}^{(0)} (\hat{β}, k, t_{i})]^{2}}} + H_{E} (t, ξ)^{'} [I (\hat{β})]^{- 1} H_{E} (t, ξ)

Math Rendered as SVG

Math as LaTeX Source

\[ \hat{\sigma }^2(\hat{\Lambda }_ F(t,\bxi )) = \mr{e}^{2\hat{\bbeta }'\bxi } \sum _{t_ i \leq t} \biggl \{ \sum _{k=1}^{d(t_ i)} \frac{1}{[S_ E^{(0)}(\hat{\bbeta },k,t_ i)]^2} \biggr \} + H_ E(t,\bxi )'[\mc{I}(\hat{\bbeta })]^{-1} H_ E(t,\bxi ) \]