101 reputation
bio website chubig.net
location Cambridge, United Kingdom
age 23
visits member for 1 year, 10 months
seen Dec 13 '12 at 17:13

Mostly doing physics, I sometimes also end up forcing together various innocent binaries in /bin and /usr/bin to get a job done. They usually hold together just long enough to finish :\

I don’t answer questions that use non-SI units.

comment On the derivative of a Heaviside step function being proportional to the Dirac delta function
It should be noted that this works for arbitrary small integration limits $\pm \epsilon$, which excludes most/all functions but $\delta(x)$ from fulfilling the requirement.