i need help on builtin function math

[Marcus Konermann]

hello !

i want to use the sqrt() function of the builtin funtion math in that
kind:

import math
...
a=0
a=sqrt(whatever)

and than a NameError: sqrt occured and i don´t know why ? Is it
depending on the OS (i use Windows98 and the pywin
editor). Other functions, like pow(), from the math module are working.
Can anyone help me with my problem ?

thank´s a lot
greetings
Marcus