From: Claude Marche <Claude.Marche@lri.fr>
To: N Hur <mapnh@maths.bath.ac.uk>
Cc: caml-list@inria.fr
Subject: Re: nth_root of num?
Date: Tue, 1 Dec 1998 11:35:39 +0100 (MET) [thread overview]
Message-ID: <13923.50811.334235.394872@sun8f.LRI> (raw)
In-Reply-To: <Pine.SOL.4.05.9812011025090.6015-100000@odin.maths.bath.ac.uk>
>>>>> "N Hur" == N Hur <mapnh@maths.bath.ac.uk> writes:
N Hur> Thank you.
N Hur> But running your code for example,
N Hur> root_floor 3 (Int 2) (* menaing third_root of 2 *);;
N Hur> gives 1, while what we want is 1.2599210498 ...
Sorry, I misunderstood your question. I though you where interested in
computing the nth root of a big_num. If you are interested in
computing the nth root of a float, I really don't understand why you
are using big nums.
An algorithm for computing the nth root of a float is easy :
let nth_root n x = exp (log(x)/.(float_of_int n));;
Hope this helps. If it doesn't answer to your question, please explain
your problem more precisely.
- Claude
--
| Claude Marché | mailto:Claude.Marche@lri.fr |
| LRI - Bât. 490 | http://www.lri.fr/~marche/ |
| Université de Paris-Sud | phoneto: +33 1 69 15 64 85 |
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next prev parent reply other threads:[~1998-12-01 18:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-11-25 13:48 N Hur
1998-11-26 16:23 ` Claude Marche
[not found] ` <Pine.SOL.4.05.9812011025090.6015-100000@odin.maths.bath.ac.uk>
1998-12-01 10:35 ` Claude Marche [this message]
1998-12-01 20:25 ` John Whitley
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