Added note about Chrome's way to get doubles. Added readme content.

README

@@ -0,0 +1,17 @@
+For usage on the LA Time's powerball simulator. Careful about clicking the page.
+
+Run the following snippet in your browser's console.
+
+    _ = []; for(var i=0; i<5; ++i) { _.push(Math.random()) } ; console.log(_)
+
+Paste at least 3 of those values into the dubs array in main().
+
+Set the browser in main() to Chrome or Firefox. (Safari hasn't updated yet.)
+
+    python xs128p.py
+
+The winning numbers should have an arrow. Click once on the number inputs and tab between them to enter your "pick".
+
+Click once on the play button.
+
+Enjoy your lotto winnings :)

xs128p.py

@@ -2,7 +2,7 @@ import sys
 import math
 import struct
 import random
-sys.path.append('/path/to/z3/build/')
+sys.path.append('/home/dgoddard/tools/z3/build/')
 from z3 import *
 
 # xor_shift_128_plus algorithm
@@ -90,7 +90,7 @@ def power_ball(generated, browser):
 # Firefox nextDouble():
     # (rand_uint64 & ((1 << 53) - 1)) / (1 << 53)
 # Chrome nextDouble():
-    # (rand_uint64 & ((1 << 52) - 1)) | 0x3FF0000000000000
+    # ((rand_uint64 & ((1 << 52) - 1)) | 0x3FF0000000000000) - 1.0
 # Safari weakRandom.get():
     # (rand_uint64 & ((1 << 53) - 1) * (1.0 / (1 << 53)))
 
@@ -102,7 +102,7 @@ def main():
     browser = 'chrome'
     # browser = 'firefox'
     print 'BROWSER: %s' % browser
-    
+
     # In your browser's JavaScript console:
     # _ = []; for(var i=0; i<5; ++i) { _.push(Math.random()) } ; console.log(_)
     # Enter at least 3 random numbers you observed here: