User:Edward 13579/sandbox

playing with math $$ \vec{\nabla} \boxtimes \vec{e} = ?? $$ signature: --Edward 13579 (talk) 02:57, 12 October 2011 (UTC)

hmm... newlines are ignored. Trying html new line?

line break?

$$ \vec{\nabla} \cdot \vec{b} = \frac{\partial}{\partial x} \left( \frac{\partial}{\partial y} A_z + \frac{\partial}{\partial z} A_y \right) + ... $$

bleh, shorter notation

$$ \begin{align} \vec{\nabla} \cdot \vec{b} &= \partial_x ( \partial_y A_z + \partial_z A_y ) + \partial_y ( \partial_z A_x + \partial_x A_z ) + \partial_z ( \partial_x A_y + \partial_y A_x ) \\

&= 2 (\partial_x \partial_y A_z + \partial_x\partial_z A_y + \partial_y \partial_z A_x) \end{align} $$

Edward 13579 (talk) 03:09, 12 October 2011 (UTC)