diff options
Diffstat (limited to 'Demo/scripts/primes.py')
-rwxr-xr-x | Demo/scripts/primes.py | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Demo/scripts/primes.py b/Demo/scripts/primes.py new file mode 100755 index 0000000..487acef --- /dev/null +++ b/Demo/scripts/primes.py @@ -0,0 +1,26 @@ +#! /usr/local/python + +# Print prime numbers in a given range + +def main(): + import sys + min, max = 2, 0x7fffffff + if sys.argv[1:]: + min = int(eval(sys.argv[1])) + if sys.argv[2:]: + max = int(eval(sys.argv[2])) + primes(min, max) + +def primes(min, max): + if 2 >= min: print 2 + primes = [2] + i = 3 + while i <= max: + for p in primes: + if i%p = 0 or p*p > i: break + if i%p <> 0: + primes.append(i) + if i >= min: print i + i = i+2 + +main() |