Aother thing to consider is that math.sqrt is not the only sqrt function in Python. There is also one in cmath, and in the wider ecosystem, another one in numpy. Being explicit about which one you're using is a good thing.
Concerning exponentiation, it can be used to achieve the same thing as sqrt, but the sqrt function probably uses a more efficient algorithm. Also, exponentiation assumes you're okay with getting a complex result: >>> (-27)**0.5 (3.181725716174721e-16+5.196152422706632j) So it's not quite the same thing as math.sqrt(). -- Greg -- https://mail.python.org/mailman/listinfo/python-list
