* [Caml-list] How standard is exponentiation in ocaml?
[not found] ` <CAAYUt0OGyp35f-aDtCsQy2OQH1JrHJUp1GBUiUPEkBrwFth5xg@mail.gmail.com>
@ 2014-06-04 20:21 ` Arthur Breitman
2014-06-04 21:03 ` Jacques-Henri Jourdan
0 siblings, 1 reply; 2+ messages in thread
From: Arthur Breitman @ 2014-06-04 20:21 UTC (permalink / raw)
To: caml-list
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Hello,
How standard is exponentiation in ocaml?
Specifically, is the result of
(**): float -> float -> float
guaranteed to be the same for the same input regardless of the compiler's
version?
Are any number of digits guaranteed to be correct? In which case I could
truncate.
I do not care too much about exactitude, but I need the operation's
semantic to be exactly defined.
Best,
Arthur
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* Re: [Caml-list] How standard is exponentiation in ocaml?
2014-06-04 20:21 ` [Caml-list] How standard is exponentiation in ocaml? Arthur Breitman
@ 2014-06-04 21:03 ` Jacques-Henri Jourdan
0 siblings, 0 replies; 2+ messages in thread
From: Jacques-Henri Jourdan @ 2014-06-04 21:03 UTC (permalink / raw)
To: caml-list
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Hi,
(**) in OCaml is implemented using the C stdlib pow function.
AFAIK, there is no strict guarantees on the precision of these functions...
--
JH
Le 04/06/2014 22:21, Arthur Breitman a écrit :
> Hello,
>
> How standard is exponentiation in ocaml?
>
> Specifically, is the result of
> (**): float -> float -> float
> guaranteed to be the same for the same input regardless of the compiler's
> version?
>
> Are any number of digits guaranteed to be correct? In which case I could
> truncate.
>
> I do not care too much about exactitude, but I need the operation's
> semantic to be exactly defined.
>
> Best,
> Arthur
>
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2014-06-04 20:21 ` [Caml-list] How standard is exponentiation in ocaml? Arthur Breitman
2014-06-04 21:03 ` Jacques-Henri Jourdan
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