> > Here is the arithmetic program I made that it worked before I added > the "import math" line. > > #volumen.py > # A program to compute the volume and surface area of a sphere > import math > > .... > NameError: global name 'pi' is not defined > ....
>>> from math import * >>> >>> def surface( r ) : ... return 4 * pi * r ** 2 ... >>> def volume( r ) : ... return ( 4. / 3. ) * pi * r ** 3 ... >>> for n in range( 1 , 11 ) : ... s = surface( n ) ... v = volume( n ) ... print ' %2d .... %9.4f .... %9.4f ' % ( n , s , v ) ... -- Stanley C. Kitching Human Being Phoenix, Arizona -- http://mail.python.org/mailman/listinfo/python-list
