On Thursday 08 May 2008 06:54:42 pm [EMAIL PROTECTED] wrote: > The problem is that Python parses -123**0 as -(123**0), not as > (-123)**0.
Actually, I've always written it as (-123)**0. At least where I'm from, exponentiation takes precedence even over unary "-". (to get a power of -123, you must write $(-123)^0$ [latex]) Though not an authoritative source, wikipedia also uses the (-x)^y notation: http://en.wikipedia.org/wiki/Exponentiation#Powers_of_minus_one Btw, there seems to be a math problem in python with exponentiation... >>> 0**0 1 That 0^0 should be a nan or exception, I guess, but not 1. [just found out while trying the poster's example] -- Luis Zarrabeitia (aka Kyrie) Fac. de Matemática y Computación, UH. http://profesores.matcom.uh.cu/~kyrie -- http://mail.python.org/mailman/listinfo/python-list
