Re: Anti log in PostgreSQL

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От Wei Weng
Тема Re: Anti log in PostgreSQL
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Msg-id 3FECBBEA.5080100@kencast.com
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Ответ на Re: Anti log in PostgreSQL  (Sai Hertz And Control Systems <sank89@sancharnet.in>)
Ответы Re: Anti log in PostgreSQL  (Sai Hertz And Control Systems <sank89@sancharnet.in>)
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Sai Hertz And Control Systems wrote:

> Dear Martin Marques ,
> 
>>> In mathematics I would have written it something like
>>>
>>> A = antilog (3·3234) = 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



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