deletions | additions       diff --git a/Summary.tex b/Summary.tex  index ebb253a..477b2e7 100644  --- a/Summary.tex  +++ b/Summary.tex 
...
\partial_z^2\partial_x^{-1}\partial_y^{-1} + \partial_x\partial_y^{-1} + \partial_x^{-1}\partial_y   \end{bmatrix}^T \\\\  \nabla \times (\nabla \times)= \times (\nabla \times))=  \begin{bmatrix}  0 & \partial_z(\nabla\cdot\nabla) & -\partial_y(\nabla\cdot\nabla) \\  -\partial_z(\nabla\cdot\nabla) & 0 & \partial_x(\nabla\cdot\nabla) \\  \partial_y(\nabla\cdot\nabla) & -\partial_x(\nabla\cdot\nabla) & 0   \end{bmatrix}  =-(\nabla\cdot\nabla)\nabla \times  \end{equation}