Alternative Equation Formats

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MathML

\frac{\partial l (β, σ^{2}; y)}{\partial σ^{2}} = - \frac{n}{2 σ^{2}} + \frac{1}{2 σ^{4}} {(y - X β)}^{'} (y - X β)

Math Rendered as SVG

Math as LaTeX Source

\[ \frac{\partial l(\bbeta ,\sigma ^2; \mb{y})}{\partial \sigma ^2} = -\frac{n}{2\sigma ^2} + \frac{1}{2\sigma ^4} \left(\mb{y}-\bX \bbeta \right)'\left(\mb{y}-\bX \bbeta \right) \]