Alternative Equation Formats

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MathML

\begin{array}{rcl} σ_{i, t}^{2} & = & c_{i} + \sum_{l = 1}^{q} a_{i i, l} ϵ_{i, t - l}^{2} + \sum_{l = 1}^{p} g_{i i, l} σ_{i, t - 1}^{2} i = 1, \dots, k \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} \sigma _{i,t}^2 & =& c_ i + \sum _{l=1}^ q a_{ii,l} \bepsilon ^2_{i,t-l} + \sum _{l=1}^ p g_{ii,l} \sigma _{i,t-1}^2 ~ ~ ~ ~ i=1,\ldots , k \end{eqnarray*}