Alternative Equation Formats

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MathML

\begin{array}{rcl} y_{t} & = & σ_{t} z_{t} \\ l o g (σ_{t}^{2}) & = & a + b l o g (σ_{t - 1}^{2}) + s u_{t} \\ (z_{t}, u_{t}) & \sim & i i d N (0, I_{2}) \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} y_ t & =& \sigma _ t z_ t \\ log(\sigma _ t^2) & =& a + b \, log(\sigma _{t-1}^2) + s u_ t \\ (z_ t,u_ t) & \sim & iid \, N(0, I_2) \nonumber \end{eqnarray*}