aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Update all new Tasks

Browse source
This commit is contained in:
Ingy döt Net 2015-02-20 09:02:09 -05:00
parent 00a190b0a6
commit 91df62d461
5697 changed files with 93386 additions and 804 deletions
Download patch file Download diff file Expand all files Collapse all files

13
Task/Arithmetic-geometric-mean-Calculate-Pi/Python/arithmetic-geometric-mean-calculate-pi.py Normal file
View file

@ -0,0 +1,13 @@
from decimal import *
D = Decimal
getcontext().prec = 100
a = n = D(1)
g, z, half = 1 / D(2).sqrt(), D(0.25), D(0.5)
for i in range(18):
x = [(a + g) * half, (a * g).sqrt()]
var = x[0] - a
z -= var * var * n
n += n
a, g = x
print(a * a / z)