On Mar 11, 7:49 pm, "Paddy" <[EMAIL PROTECTED]> wrote: > > Isn't negative zero mathematically the same as zero? Isn't -0 just an > artefact of the representation of floating point numbers? Shouldn't > f(0) == f(-0) for all functions f?
Read the original post again... The relevant part is: ==== I'm working in a situation involving complex arithmetic where branch cuts, and hence signed zeros, are important, and it would be handy if the above code could be relied upon to do the right thing. ==== You may want to read about branch cuts and complex arithmetics. I don't mean this as a putdown - simply as a useful suggestion for you to read. André
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