--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Demo/scripts/pi.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,34 @@
+#! /usr/bin/env python
+
+# Print digits of pi forever.
+#
+# The algorithm, using Python's 'long' integers ("bignums"), works
+# with continued fractions, and was conceived by Lambert Meertens.
+#
+# See also the ABC Programmer's Handbook, by Geurts, Meertens & Pemberton,
+# published by Prentice-Hall (UK) Ltd., 1990.
+
+import sys
+
+def main():
+ k, a, b, a1, b1 = 2L, 4L, 1L, 12L, 4L
+ while 1:
+ # Next approximation
+ p, q, k = k*k, 2L*k+1L, k+1L
+ a, b, a1, b1 = a1, b1, p*a+q*a1, p*b+q*b1
+ # Print common digits
+ d, d1 = a//b, a1//b1
+ while d == d1:
+ output(d)
+ a, a1 = 10L*(a%b), 10L*(a1%b1)
+ d, d1 = a//b, a1//b1
+
+def output(d):
+ # Use write() to avoid spaces between the digits
+ # Use str() to avoid the 'L'
+ sys.stdout.write(str(d))
+ # Flush so the output is seen immediately
+ sys.stdout.flush()
+
+if __name__ == "__main__":
+ main()