/
mersenneprimenum.py
138 lines (109 loc) · 3.28 KB
/
mersenneprimenum.py
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import turtle
from turtle import Turtle, Screen
from random import random
import time
y = int(input("How many powers of 2 to check:"))
l = []
for i in range(y):
num = pow(2,i) - 1
if num > 1:
for j in range(2,num):
if (num % j) == 0:
break
else:
l.append(num)
stylePrime = ('Courier', 15, 'bold')
styleNormal = ('Courier', 15)
def plot(k):
numPrimes = 0
turtle.pu()
turtle.hideturtle()
turtle.speed(10)
turtle.pencolor("green")
turtle.write(1, font = stylePrime)
spacerValue = 60
#spacerCounter = 10
n = 1
dir = 1
for i in range(20):
for j in range(n):
turtle.setx(turtle.xcor() + spacerValue * dir)
# if k > spacerCounter:
# spacerCounter = spacerCounter * 10
# spacerValue += 15
if k in l:
# if isPrime(k):
# print(k)
numPrimes += 1
turtle.pencolor("red")
turtle.write(k, font = stylePrime)
else:
turtle.pencolor("black")
turtle.write(k, font = styleNormal)
k += 1
for j in range(n):
turtle.sety(turtle.ycor() + spacerValue * dir)
# if isPrime(k):
if k in l:
# print(k)
numPrimes += 1
turtle.pencolor("red")
turtle.write(k, font = stylePrime)
else:
turtle.pencolor("black")
turtle.write(k, font = styleNormal)
k += 1
n += 1
dir =- dir
# print (k - 1, numPrimes)
turtle.hideturtle()
plot(2)
MAGNIFICATION = 10
def move_left():
canvas.xview_scroll(-1, "units")
turtle.setx(turtle.xcor() - MAGNIFICATION)
def move_right():
canvas.xview_scroll(1, "units")
turtle.setx(turtle.xcor() + MAGNIFICATION)
def move_up():
canvas.yview_scroll(-1, "units")
turtle.sety(turtle.ycor() + MAGNIFICATION)
def move_down():
canvas.yview_scroll(1, "units")
turtle.sety(turtle.ycor() - MAGNIFICATION)
screen = Screen()
width, height = screen.screensize()
screen.screensize(width * MAGNIFICATION, height * MAGNIFICATION)
canvas = screen.getcanvas()
canvas.config(xscrollincrement=str(MAGNIFICATION))
canvas.config(yscrollincrement=str(MAGNIFICATION))
turtle.width(MAGNIFICATION)
turtle.resizemode('auto')
screen.onkey(move_left, "Left")
screen.onkey(move_right, "Right")
screen.onkey(move_up, "Up")
screen.onkey(move_down, "Down")
screen.listen()
screen.mainloop()
#_________________________
"""3, 4, 5, 7, 11, 13, 17, 23, 29, 43, 47, 83, 131, 137,
359, 431, 433, 449, 509, 569, 571, 2971, 4723, 5387, 9311, 9677,
14431, 25561, 30757, 35999, 37511, 50833, 81839, 104911, 130021,
148091, 201107, 397379, 433781, 590041, 593689, 604711, 931517,
1049897, 1285607, 1636007, 1803059, 1968721, 2904353, 3244369, 3340367"""
"""def isPrime(n) :
# Corner cases
if (n <= 1) :
return False
if (n <= 3) :
return True
# This is checked so that we can skip
# middle five numbers in below loop
if (n % 2 == 0 or n % 3 == 0) :
return False
i = 5
while(i * i <= n) :
if (n % i == 0 or n % (i + 2) == 0) :
return False
i = i + 6
return True"""