2008-05-24

i still don't understand if there's a nice Cauchy-like sense in which

$\int_{\mathbb R^3} {e^{-i{\bf q} \cdot {\bf x}} \over |{\bf x}|} \,d{\bf x} = {4 \pi \over |{\bf q}|^2}$

but now i can show a derivation.

meanwhile!

( a poem? )