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all Long constants have an L suffix, not l;

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added an output() function to move the I/O out of the algorithm
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Guido van Rossum 1992-08-31 10:54:17 +00:00
parent 0cc19450e2
commit 0b2b440a13
1 changed files with 11 additions and 8 deletions
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19
Demo/scripts/pi.py
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@ -11,20 +11,23 @@
import sys import sys
def main(): def main():
k, a, b, a1, b1 = 2l, 4l, 1l, 12l, 4l k, a, b, a1, b1 = 2L, 4L, 1L, 12L, 4L
while 1: while 1:
# Next approximation # Next approximation
p, q, k = k*k, 2l*k+1l, k+1l p, q, k = k*k, 2L*k+1L, k+1L
a, b, a1, b1 = a1, b1, p*a+q*a1, p*b+q*b1 a, b, a1, b1 = a1, b1, p*a+q*a1, p*b+q*b1
# Print common digits # Print common digits
d, d1 = a/b, a1/b1 d, d1 = a/b, a1/b1
#print a, b, a1, b1
while d == d1: while d == d1:
# Use write() to avoid spaces between the digits output(d)
sys.stdout.write(`int(d)`) a, a1 = 10L*(a%b), 10L*(a1%b1)
# Flush so the output is seen immediately
sys.stdout.flush()
a, a1 = 10l*(a%b), 10l*(a1%b1)
d, d1 = a/b, a1/b1 d, d1 = a/b, a1/b1
def output(d):
# Use write() to avoid spaces between the digits
# Use int(d) to avoid a trailing L after each digit
sys.stdout.write(`int(d)`)
# Flush so the output is seen immediately
sys.stdout.flush()
main() main()