Alternative Equation Formats

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MathML

\hat{φ} - 1 = {[\sum_{i = 1}^{N} y_{i, - 1}^{'} Q_{T} y_{i, - 1}]}^{- 1} \cdot [\sum_{i = 1}^{N} y_{i, - 1}^{'} Q_{T} v_{i}]

Math Rendered as SVG

Math as LaTeX Source

\begin{equation*} \hat{\varphi }-1=\left[\sum _{i=1}^{N}y_{i,-1}'Q_{T}y_{i,-1}\right]^{-1}\cdot \left[\sum _{i=1}^{N}y_{i,-1}'Q_{T}v_{i}\right] \end{equation*}