Alternative Equation Formats

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MathML

\frac{\partial^{2} ‖ q (y, x, θ) ‖}{\partial y^{2}} = 2 (J^{'} diag (S)^{- 1} J + \sum_{k = 1}^{d} \frac{\partial^{2} q_{k} (y, x, θ)}{\partial y^{2}} diag (S)^{- 1} q_{k} (y, x, θ))

Math Rendered as SVG

Math as LaTeX Source

\[ \frac{\partial ^2\Vert \mb{q}(\mb{y},\mb{x},\btheta )\Vert }{\partial \mb{y}^2} = 2\left(\mb{J'}\textrm{diag}(\mb{S})^{-1}\mb{J} + \sum _{k=1}^ d \frac{\partial ^2q_ k(\mb{y},\mb{x},\btheta )}{\partial \mb{y}^2} \textrm{diag}(\mb{S})^{-1}q_ k(\mb{y},\mb{x},\btheta ) \right) \]