(no subject)

[krychan]

a physiological observable L(r) is scale invariant: L(r) = kL(ar) where a>0, r is the resolution and k is a constant. Show that L(r) = Ar^alpha, where A is a constant and k = 1/a^alpha.

i mean, yeah i know the solution but really? this is what you want to test us on? algebra?!