blob: 747f7ca4544b15f0215fc229176afcdf69d8a8f0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
a,b = 1.0,3.0
breakpoint = 1000
pi = 0.0
for loop in range(1, breakpoint):
pi += (4.0/a) - (4.0/b)
a += 4
b += 4
print pi
# Now that the result has been computed we can explore printing the result.
print "There are multiple ways to print numbers here is a quick sample."
print "Just print it :", pi
print "Using repr() :", repr(pi)
print "Our approximation: %3.20f" % pi
print "\nPi is a very famous number...."
# Use python's math module it is faster and close enough for most computations.
import math
print "Python's Math library computes"
print "a better value pi: %3.39f" % math.pi; # it uses...(math.atan(1.0) * 4.0)
# when running computations based on "pi" it is good to begin with the best value you can get.
# from the gnu 'C' comiler /usr/include/math.h"
print "For reference a more exact 32 bit floating point value for pi is."
print "Known value of pi: 3.14159265358979323846"
|
