Mm very interesting thread, for my needs from numpy import inf is more
than enough :)
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On Jun 27, 6:41 am, andrea [EMAIL PROTECTED] wrote:
I would like to have a useful rappresentation of infinite, is there
already something??
I was thinking to something like this
class Inf(int):
numero infinito
def __init__(self,negative=False):
[EMAIL PROTECTED] wrote:
float('inf') works well, no?
inf = float('inf')
inf / inf
nan
-inf
-inf
inf / 0
ZeroDivisionError: float division
1 / inf
0.0
0 * float('inf')
nan
It is not cross-platform. The parsing of strings into floats and the
Robert Kern wrote:
[EMAIL PROTECTED] wrote:
float('inf') works well, no?
It is not cross-platform. The parsing of strings into floats and the string
representation of floats is dependent on your system's C library. For these
special values, this differs across platforms. Your code won't
[EMAIL PROTECTED] wrote:
On Thu, 28 Jun 2007 23:20:30 -0500
Robert Kern [EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] wrote:
Does it differ from the
built-in inf?
What built-in inf?
$ python
Python 2.4.4 (#2, Apr 5 2007, 20:11:18)
[GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)] on
Robert Kern wrote:
[EMAIL PROTECTED] wrote:
On Thu, 28 Jun 2007 23:20:30 -0500
Robert Kern [EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] wrote:
Does it differ from the
built-in inf?
What built-in inf?
$ python
Python 2.4.4 (#2, Apr 5 2007, 20:11:18)
[GCC 4.1.2 20061115 (prerelease) (Debian
John Nagle [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
|If Python numerics don't define
| +INF, -INF, and NaN, along with the tests for them, that's a
| flaw in the language.
Are you volunteering to fix the 'flaw'? CPython floating point numerics
are currently defined to be
[EMAIL PROTECTED] wrote:
No. You can make one that fits your requirements, though.
I am struggling to oversee the implications of design choices for inf
behaviour - especially if it comes to comparison with float type inf.
The type in my application contains a gmpy.mpq and a float that is
On Wed, 27 Jun 2007 11:59:29 -
Rob De Almeida [EMAIL PROTECTED] wrote:
On Jun 27, 6:41 am, andrea [EMAIL PROTECTED] wrote:
I would like to have a useful rappresentation of infinite, is there
already something??
from numpy import inf
$ python
Python 2.4.4 (#2, Apr 5 2007, 20:11:18)
[EMAIL PROTECTED] wrote:
On Wed, 27 Jun 2007 11:59:29 -
Rob De Almeida [EMAIL PROTECTED] wrote:
On Jun 27, 6:41 am, andrea [EMAIL PROTECTED] wrote:
I would like to have a useful rappresentation of infinite, is there
already something??
from numpy import inf
$ python
Python 2.4.4
On Thu, 28 Jun 2007 23:20:30 -0500
Robert Kern [EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] wrote:
Does it differ from the
built-in inf?
What built-in inf?
$ python
Python 2.4.4 (#2, Apr 5 2007, 20:11:18)
[GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)] on linux2
Type help, copyright,
I would like to have a useful rappresentation of infinite, is there
already something??
I was thinking to something like this
class Inf(int):
numero infinito
def __init__(self,negative=False):
self.negative = negative
def __cmp__(self,y):
On Jun 27, 6:41 am, andrea [EMAIL PROTECTED] wrote:
I would like to have a useful rappresentation of infinite, is there
already something??
from numpy import inf
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