Hugh wrote: > Sorry, here's an example... > > 5+7=12 > > added without carrying, 5+7=2 > > i.e the result is always less than 10 > > I've been thinking some more about this and my brain is starting to > work something out... I just wondered if there was a function in python > math to do this automatically...
>>> (5 + 7) % 10 2 In this context '%' is called 'modulo operator'. What John and Marc suggested is basically the same operation for the special case of binary numbers, i. e. a % b == a & (b-1) if a >= 0 and b == 2**N. Peter -- http://mail.python.org/mailman/listinfo/python-list
