import numpy as np
import cosmotool as ct

N=32
f=0.10
d=np.random.normal(size=(N,)*3)
rho = d + f *(d*d - np.average(d*d))

B = ct.bispectrum(rho, 1, N, fourier=False)
P = ct.powerspectrum(rho, 1, N, fourier=False)
PP = P[1]/P[0]/N**3

x = PP[:,None,None] * PP[None,:,None] + PP[:,None,None]*PP[None,None,:] + PP[None,:,None]*PP[None,None,:]

BB = B[1]/B[0]/N**6

y = BB/x