import math


def dist(point_a, point_b):
    """compute the absolute distance between to (x,y,z) tuples"""

    x1,y1,z1 = point_a
    x2,y2,z2 = point_b

    return math.sqrt((x2-x1) ** 2 +(y2-y1) ** 2 +(z2-z1) ** 2)