On Sun, Jan 8, 2017 at 11:15 AM, Jack Harvey <jackrhar...@hotmail.com> wrote: > I'm starting out with Python 3.5. My current frustration is with: > > >>>> math.sqrt(25) > Traceback (most recent call last): > File "<pyshell#0>", line 1, in <module> > math.sqrt(25) > NameError: name 'math' is not defined >>>> > > > Advice?
A lot of Python's features are in what's called the "standard library" - a set of modules that you can call up with the 'import' statement. In this case, all you need is to start with this line: import math Once you do that, everything in the math module (including math.sqrt) should be available. Enjoy! ChrisA -- https://mail.python.org/mailman/listinfo/python-list
