Alternative Equation Formats

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MathML

ℓ = - \frac{1}{2} \sum_{t = 1}^{T} [\log | Σ_{t | t - 1} | + (y_{t} - {\hat{y}}_{t | t - 1})^{'} Σ_{t | t - 1}^{- 1} (y_{t} - {\hat{y}}_{t | t - 1})]

Math Rendered as SVG

Math as LaTeX Source

\[ \ell = -\frac{1}{2} \sum _{t=1}^ T [ \log |\Sigma _{t|t-1}| + (\mb{y} _{t}-\hat{\mb{y} }_{t|t-1})'\Sigma _{t|t-1}^{-1} (\mb{y} _{t}-\hat{\mb{y} }_{t|t-1}) ] \]