pg.ddx.io  pgsql-sql@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Wei Weng <wweng@kencast.com>
To: aspire420@hotpop.com
Cc: Martin Marques <martin@bugs.unl.edu.ar>
Cc: pgsql-admin@postgresql.org
Cc: pgsql-sql@postgresql.org
Subject: Re: Anti log in PostgreSQL
Date: Fri, 26 Dec 2003 17:53:30 -0500
Message-ID: <3FECBBEA.5080100@kencast.com> (raw)
In-Reply-To: <3FECBA50.2000500@sancharnet.in>
References: <3FECB238.1050801@sancharnet.in>
	<200312261934.35070.martin@bugs.unl.edu.ar>
	<3FECBA50.2000500@sancharnet.in>

Sai Hertz And Control Systems wrote:

> Dear Martin Marques ,
> 
>>> In mathematics I would have written it something like
>>>
>>> A = antilog (3ยท3234) = 2144
>>>   
>>
>>
>> As I can understand, this is a 10 base log, so that what you want is 
>> 10^(3.3234)?
>>
>> For that you have the exponential operator ^.
>>  
>>
> Nope
> select exp(3.3234) as a2144
> Gives me
> 27.754555808589792
> But the answer expected is some what near to 2144
> The log tables show this
> 
> Regards,
> Vishal Kashyap.
> 

What is the mathematical operation that "antilog" is supposed to perform?

Wei




view thread (12+ messages)  latest in thread

Message-ID: <3FECBBEA.5080100@kencast.com>
Permalink:  ../3FECBBEA.5080100@kencast.com/
Also on:    postgresql.org/message-id/3FECBBEA.5080100@kencast.com

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-sql@postgresql.org
  Cc: wweng@kencast.com, aspire420@hotpop.com, martin@bugs.unl.edu.ar, pgsql-admin@postgresql.org
  Subject: Re: Anti log in PostgreSQL
  In-Reply-To: <3FECBBEA.5080100@kencast.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox