From: Arturo Borquez <aborquez@altavista.com>
To: wester@ilt.fhg.de
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Complex numbers in OCaml
Date: 27 Mar 2001 09:49:47 -0800 [thread overview]
Message-ID: <20010327174947.4199.cpmta@c012.sfo.cp.net> (raw)
On Tue, 27 March 2001, wester@ilt.fhg.de wrote:
>
> Hi,
>
> I need complex numbers. I tried it this way:
>
> type number = Real of float | Complex of (float*float);;
>
> let add_num a b =
> match (a,b) with
> (Real a, Real b) -> Real (a +. b)
> | (Real a, Complex (bx,by)) -> Complex (a +. bx, by) .................
Hi: Rolf:
Here is a little example of an alternative to operate with complex numbers. The key is to define a complex a a duple and define new opertators to do computations, ie +! for addition -! for substraction *! /!...
let (+!) (xr, xi) (yr, yi) = (xr +. yr), (xi +. yi);;
let a = (1.0, 2.0);;
let b = (0.0, -4.75);;
let z = a +! b;;
z;;
val z : float * float = 1, -2.75
The same applies for sub, mpy and div ops.
hope this helps.
Best regards.
Arturo Borquez
Find the best deals on the web at AltaVista Shopping!
http://www.shopping.altavista.com
-------------------
To unsubscribe, mail caml-list-request@inria.fr. Archives: http://caml.inria.fr
next reply other threads:[~2001-03-27 17:49 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-27 17:49 Arturo Borquez [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-09-21 22:25 [Caml-list] Complex numbers in ocaml Post Office!~/sentmail
2001-09-22 17:59 ` John Max Skaller
2001-03-27 16:22 [Caml-list] Complex numbers in OCaml wester
2001-03-27 17:19 ` Markus Mottl
2001-03-27 17:48 ` Jan Skibinski
2001-03-27 19:25 ` Markus Mottl
2001-03-28 1:04 ` Michael Hohn
2001-03-29 14:26 ` Xavier Leroy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20010327174947.4199.cpmta@c012.sfo.cp.net \
--to=aborquez@altavista.com \
--cc=caml-list@inria.fr \
--cc=wester@ilt.fhg.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).