Interesting, #Nix OS links to Amazon Machine Images for instsalling on #EC2.
#Nix has .debs, RPMs, source packages, etc. Includes .debs for Wheezy. The .debs are kind of cruddy: they don’t create the /nix directory or an init.d script to start the nix-daemon, and the package description is “Package created with checkinstall 1.6.2”. It looks like they include a bunch of systemd bullshit, even though Wheezy doesn’t use systemd. Also, it doesn’t create the ‘nixbld’ group. This .deb distribution is useless.
The #Nix manual, to figure out how to install it.
A #DSP book chapter on the frequency response of linear time-invariant systems, including, in particular, different #FIR filters.
Tri Alpha is firing plasmoids at each other and getting the resulting fireball to hold together for 5ms? i.e. tori of #plasma confined by their own magnetic fields, aka “field-reversed configuration” thingies. Attempt to harness hydrogen-boron #fusion to harvest #energy. Also they’re supposedly firing the tori at “nearly a million kilometers per hour”, which would allow them to travel nearly 1400 meters in those 5ms, evoking sci-fi notions of plasmoid weapons; but in fact this is under very special conditions which wouldn’t obtain in space, and they are constantly adding energy to keep the plasma confined during those 5ms. So far they’re only at 10MK; need to reach 3GK, not just the 100MK needed for D-T fusion.
Markov asset pricing using Numpy in #Python and #IPython, part of “a series of lectures on quantitative economic modelling, designed and written by Thomas J. Sargent and John Stachurski.”
How to upsample and downsample with the .resample method in #Pandas