/sci/ - Science & Math

>>9662093
it decomposes a function into its frequencies ("frequency domain representation")
it's a complex valued function as well, magnitude is the amount of frequency shown in the original function (for any cos(x) graph there's also an i*sin(x) graph since it uses the e^ix identity), and the arg of the function (or the angle t in |r|*e^it) is the phase angle or offset

i could explain further i guess but i don't know how much you want to know