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} - b_{i i, 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 _{i,t-l} - b_{ii,l})^{2}} + \sum _{l=1}^{p}{g_{ii,l} \sigma _{i,t-1}^2} ~ ~ ~ ~ i=1,\ldots , k\\ \end{eqnarray*}