On Sep 7, 2013, at 6:02 PM, Byron Ruffin wrote: <snip> > > >>> math.ceil(math.pi) > 4
<snip> > ... but I get the error when using ceil... > > pepsticks = ceil(peplength / StickLength) > Traceback (most recent call last): > File "<pyshell#19>", line 1, in <module> > pepsticks = ceil(peplength / StickLength) > NameError: name 'ceil' is not defined Look carefully again at that error. Basically, it's telling you that 'ceil' is not the same as 'math.ceil' which is how you used it correctly the first time. That's an easy mistake to make. Take care, Don _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor