gistfile1.py

import sys
import time
from _decimal import *

def color_point(x0, y0, iters):
    two = Decimal(2)

    x = +x0
    y = +y0
    sq_x = x * x
    sq_y = y * y

    for i in range(iters):
        y = two * (x * y) + y0
        x = sq_x - sq_y + x0
        sq_x = x * x
        sq_y = y * y

    return x

def main():
    prec, iters = [int(x) for x in sys.argv[1:]]

    getcontext().prec = prec

    x0 = Decimal("0.222")
    y0 = Decimal("0.333")

    clock = time.perf_counter
    start_clock = clock()
    x = color_point(x0, y0, iters)
    end_clock = clock()

    print(x)
    print("time: %f\n\n" % (end_clock-start_clock))


if __name__ == "__main__":
    main()