[Gzz-commits] manuscripts/Sigs birthday.py

[Tuomas J. Lukka]

CVSROOT:        /cvsroot/gzz
Module name:    manuscripts
Changes by:     Tuomas J. Lukka <address@hidden>        03/05/19 15:51:05

Modified files:
        Sigs           : birthday.py 

Log message:
        usage

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/manuscripts/Sigs/birthday.py.diff?tr1=1.1&tr2=1.2&r1=text&r2=text

Patches:
Index: manuscripts/Sigs/birthday.py
diff -u manuscripts/Sigs/birthday.py:1.1 manuscripts/Sigs/birthday.py:1.2
--- manuscripts/Sigs/birthday.py:1.1    Mon May 19 15:50:01 2003
+++ manuscripts/Sigs/birthday.py        Mon May 19 15:51:05 2003
@@ -1,6 +1,8 @@
 from math import *
 
 def log2birthdayprob(n, k):
+    """return log2(p(k balls thrown to n bins, all end up alone))
+    """
     return (
            (n+.5) * log(n) 
            - (n-k+.5) * log(n-k)