[Caml-list] How standard is exponentiation in ocaml?

[Caml-list] How standard is exponentiation in ocaml?

[Arthur Breitman]

[-- Attachment #1: Type: text/plain, Size: 393 bytes --]

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

[-- Attachment #2: Type: text/html, Size: 517 bytes --]

Re: [Caml-list] How standard is exponentiation in ocaml?

[Jacques-Henri Jourdan]

[-- Attachment #1: Type: text/plain, Size: 663 bytes --]

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
> 



[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 538 bytes --]