kmill

# count 4x4 mazes (spanning trees) using Kirchoff's theorem

import numpy as np

# Vertices:
#  0  1  2  3
#  4  5  6  7
#  8  9 10 11
# 12 13 14 15

kmill

def quantize(w, x, y, z, n) :
    if z == None :
        z = 1.0 - w - x - y
    n = int(n)

    v = [w, x, y, z]
    vn = [a * n for a in v]
    vni = [int(a) for a in vn]
    vnf = [a - ai for a, ai in zip(vn, vni)]

kmill

# n is an integer, the number of quantization steps of the 4-tuple [w, x, y, z]
def quantize(w, x, y, z, n) :
    if z == None :
        z = 1.0 - w - x - y
    #assert w + x + y + z == 1
    n = int(n)

    v = [w, x, y, z]
    vn = [a * n for a in v]
    vni = [int(a) for a in vn]