[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: If pi is so accurate why it's not producing that accurate result.
From: |
Sergei Steshenko |
Subject: |
Re: If pi is so accurate why it's not producing that accurate result. |
Date: |
Fri, 23 Mar 2018 19:11:07 +0000 (UTC) |
________________________________
From: Dildar Sk <address@hidden>
To: address@hidden
Sent: Friday, March 23, 2018 10:06 PM
Subject: If pi is so accurate why it's not producing that accurate result.
I checked pi is almost accurate to 1000 digits. WoWww.
But in this cases,
>> cos(pi/2)
ans = 6.1232e-17
>> tan(pi/2)
ans = 1.6331e+16
the result is not that accurate,not even close to infinite or zero.
Can anyone tell why so?
--
Sent from: http://octave.1599824.n4.nabble.com/Octave-General-f1599825.html
-----------------------------------------------------------------------------
"the result is not that accurate,not even close to infinite or zero" - huh ?
Max value of 'cos' is 1; 1e-17 means -340db; 6.1232e-17 is better than -320db.
So, what else do you want ?
Do you at all understand how floating point math works and how 'sin' and 'cos'
are implemented in SW and HW ?
--Sergei.
- If pi is so accurate why it's not producing that accurate result., Dildar Sk, 2018/03/23
- Re: If pi is so accurate why it's not producing that accurate result.,
Sergei Steshenko <=
- Re: If pi is so accurate why it's not producing that accurate result., Dildar Sk, 2018/03/23
- Re: If pi is so accurate why it's not producing that accurate result., Dildar Sk, 2018/03/23
- Re: If pi is so accurate why it's not producing that accurate result., Nicholas Jankowski, 2018/03/23
- Re: If pi is so accurate why it's not producing that accurate result., Nicholas Jankowski, 2018/03/23
- Re: If pi is so accurate why it's not producing that accurate result., Nicholas Jankowski, 2018/03/23
- Re: If pi is so accurate why it's not producing that accurate result., Dildar Sk, 2018/03/24
- Re: If pi is so accurate why it's not producing that accurate result., Montgomery-Smith, Stephen, 2018/03/24
- Re: If pi is so accurate why it's not producing that accurate result., Doug Stewart, 2018/03/23