deletions | additions       diff --git a/Summary.tex b/Summary.tex  index e22e316..cca02d7 100644  --- a/Summary.tex  +++ b/Summary.tex 
...
\frac{\nabla^T\nabla}{\nabla\cdot\nabla} = \partial_x^2\partial_y^2\partial_z^2 \\\\  \nabla\cdot(\nabla(\nabla\cdot)) =   \begin{bmatrix}   \partial_x^2\partial_y^{-1}\partial_z^{-1} + \partial_y\partial_z^{-1} + \partial_y^{-1}\partial_z \\  \partial_y^2\partial_x^{-1}\partial_z^{-1} + \partial_x\partial_z^{-1} + \partial_x^{-1}\partial_z \\  \partial_z^2\partial_x^{-1}\partial_y^{-1} + \partial_x\partial_y^{-1} + \partial_x^{-1}\partial_y   \end{bmatrix}^T  \end{equation}