On Wed, Mar 11, 2009 at 02:12:10PM +0100, Sturla Molden wrote:
Greg Falcon wrote:
import cmath cmath.sqrt(-1)
1j
What is the point of having two math modules? It just adds confusion, like pickle and cPickle.
'c' in 'cmath' stands for 'complex'. There is a difference between float and complex math. See http://docs.python.org/library/math.html : "These functions cannot be used with complex numbers; use the functions of the same name from the cmath module if you require support for complex numbers. The distinction between functions which support complex numbers and those which don't is made since most users do not want to learn quite as much mathematics as required to understand complex numbers. Receiving an exception instead of a complex result allows earlier detection" Oleg. -- Oleg Broytmann http://phd.pp.ru/ phd@phd.pp.ru Programmers don't die, they just GOSUB without RETURN.