Jeronimo Pellegrini scripsit:
> #;5> (- a b)
> 1.0
The imaginary part vanishes because R5RS treats 1.0+0.0i as a real number.
However, R6RS does not and R7RS currently does not either, though that
may change as a result of a current debate. The rationale is that you
don't know if the complex number is actually on the real line or just
too close to it to discriminate.
--
Overhead, without any fuss, the stars were going out.
--Arthur C. Clarke, "The Nine Billion Names of God"
John Cowan <[email protected]>
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