>> Why can you not use something like: >> >> >>>hypotenuse = hyp_squared**1/2
And for completeness that could also be written: hypotenuse = pow(hyp_squared,1/2) Again, without the need to import math. -- Alan Gauld Author of the Learn to Program web site Temorarily at: http://uk.geocities.com/[EMAIL PROTECTED]/ Normally: http://www.freenetpages.co.uk/hp/alan.gauld _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor