Alternative Equation Formats

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MathML

D 2 ( τ ) = ρ τ ( y i x 1 i β ^ 1 2 ( τ ) x 2 i β ^ 2 ( τ ) )

Math Rendered as SVG

Math as LaTeX Source

$D_2(\tau )=\sum \rho _\tau \left(y_ i-\mb{x}_{1i}\hat{\bbeta }_{1_2}(\tau )- \mb{x}_{2i}\hat{\bbeta }_2(\tau )\right)$