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Created on 2008-07-15 16:13 by TanaT, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Messages (2) | |||
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| msg69693 - (view) | Author: TanaT (TanaT) | Date: 2008-07-15 16:13 | |
Hello,
This is my first Issue creation (I looked for "PI" in issue tracker and
found nothing): Please forgive any mistake.
Here is the point :
I typed the following commands :
>>> import math
>>> print '%1.26f' % math.pi
3.14159265358979311599796347
In fact, PI value is
3,14159265358979323846264338327950288...
^
I don't know if PI value is computed in Python : If it is, this issue is
probably already dead ! But if PI is just saved in math library, there
could be an improvement.
|
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| msg69694 - (view) | Author: Mark Dickinson (mark.dickinson) *  |
Date: 2008-07-15 16:19 | |
This is not a bug (though it's commonly reported as such :-) ). Given that not all real numbers can be represented as floats, math.pi is necessarily an approximation to true Pi, and you're printing that approximation out to high precision. No, pi isn't computed in Python; it's a constant, stored as an IEEE 754 double. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:36 | admin | set | github: 47615 |
| 2008-07-15 16:19:20 | mark.dickinson | set | status: open -> closed resolution: not a bug messages: + msg69694 nosy: + mark.dickinson |
| 2008-07-15 16:13:44 | TanaT | create | |