I'd expect `flexpt' to be the same as `expt', but constrained to flonum
arguments, which would make it the same as
(define (flexpt a x)
(if (and (flonum? a) (flonum? x))
(expt a x)
(error ...s)))
I agree that it would make a fine addition to `racket/flonum', but is
that what you had in mind?
At Sun, 6 May 2012 15:05:07 +0200, Jens Axel Søgaard wrote:
> I am missing flexpt in racket/flonum.
>
> I could live without, and use one of those below.
> However it looks as a natural operation to have in racket/flonum.
>
> (define (flexpt1 a x)
> (real->float (expt a x)))
>
> (define (flexpt2 a x)
> (flexp (fl* x (fllog a))))
>
> The second is about twice as fast as the second,
> but sacrifices numeriacal precision.
>
> --
> Jens Axel Søgaard
>
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