"Tom Anderson" <[EMAIL PROTECTED]> wrote: > >> And finally, does Guido know something about arithmetic that i don't, or > >> is this expression: > >> > >> -1.0 ** 0.5 > >> > >> Evaluated wrongly? > > > > No, it is evaluated according to the rules of precedence. It is > > equivalent to -(1.0**0.5). You are confusing it with (-1.0)**0.5 which > > fails as expected. > > Ah. My mistake. I submit that this is also a bug in python's grammar. > There's probably some terribly good reason for it, though.
How about 'conformance with standard mathematic notation', does this count for a terribly good reason ? What would one expect to be the result of 5^2 - 2^2, 29 or 21 ? Would you expect 5^2 + - 2^2 to be different, even if you write it as 5^2 + -2 ^ 2 ? White space is not significant in math AFAIK ;-) George -- http://mail.python.org/mailman/listinfo/python-list
