Re: -0.0 versus 0.0

Dave, think this is due to rounding and/or how floats are displayed by
default.

Could you try to reproduce it please ?

Thank you

Dave Sworin a écrit :

Sometimes a variable, after lots of calculations, is
instantiated to a

float value of -0.0 in the gprolog interpreter. When I
compare the

variable to 0.0, as in X =:= 0.0, it succeeds. X < 0.0
fails. What

is the significance of the minus sign? Is the return of
-0.0 intentional?

I don't have a simple example as this usually occurs after
some

matrix operations with lots of additions and
multiplications.

Dave

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