import math
import numpy as np

def main():
    eps = np.finfo(np.float64).eps
    a = eps / 4

    y=(2-(1/a))/(1-(1/a))
    x=(1-y)/a
    print(f"  x = {x:.52e}")
    print(f"  y = {y:.52e}")
    print(f"1-u = {1-eps/2:.52e}")

if __name__ == "__main__":
    main()