pdlem...@earthlink.net wrote:
from cmath import *
What is cmath, where did it come from and how does it differ from
the standard math module ?
Dave WB3DWE
I saw the number 4 in silver, Guido
(apologies to Wm Carlos Wil
On Wed, 29 Jul 2009 23:24:11 -0500, pdlemper wrote:
> The following numerical approximation for Euler's Gamma function
> is found in http://en.wikipedia.org/wiki/Lanczos_approximation
>
> from cmath import *
> This works in Python 3.0
>
> But I can't figure out where it gets "cmath".S
On Thu, Jul 30, 2009 at 3:10 AM, Steven
D'Aprano wrote:
> On Wed, 29 Jul 2009 21:34:07 -0700, Chris Rebert wrote:
>
>> The difference is that it handles complex numbers, whereas the plain
>> "math" module doesn't.
>> I would guess the reason there are separate modules is for performance,
>> so as t
On Wed, 29 Jul 2009 21:34:07 -0700, Chris Rebert wrote:
> The difference is that it handles complex numbers, whereas the plain
> "math" module doesn't.
> I would guess the reason there are separate modules is for performance,
> so as to avoid having to dispatch on type at runtime. But this is only
Chris Rebert wrote:
> On Wed, Jul 29, 2009 at 11:41 PM, Peter Otten<__pete...@web.de> wrote:
>> pdlem...@earthlink.net wrote:
>>
>>> I've used python a few months and expected to find cmath seperately
>>> sort of as a " header file". A text search failed. I now understand
>>> its in the Python S
On Wed, Jul 29, 2009 at 11:41 PM, Peter Otten<__pete...@web.de> wrote:
> pdlem...@earthlink.net wrote:
>
>> I've used python a few months and expected to find cmath seperately
>> sort of as a " header file". A text search failed. I now understand
>> its in the Python Standard Library, which I ass
pdlem...@earthlink.net wrote:
> I've used python a few months and expected to find cmath seperately
> sort of as a " header file". A text search failed. I now understand
> its in the Python Standard Library, which I assume is that big file
> Python30\LIBS\libpython30.a
Python 3.1 is no
pdlem...@earthlink.net wrote:
The following numerical approximation for Euler's Gamma function
is found in http://en.wikipedia.org/wiki/Lanczos_approximation
from cmath import *
But I can't figure out where it gets "cmath".
The Python documentation set has a module index. Really handy. I us
On Wed, 29 Jul 2009 21:36:31 -0700 (PDT), Carl Banks
wrote:
>On Jul 29, 9:24 pm, pdlem...@earthlink.net wrote:
>> What is cmath, where did it come from and how does it differ from
>> the standard math module ?
>
>What happened when you did a keyword search for "cmath" in the Python
>library docu
On Jul 29, 9:24 pm, pdlem...@earthlink.net wrote:
> What is cmath, where did it come from and how does it differ from
> the standard math module ?
What happened when you did a keyword search for "cmath" in the Python
library documentation?
What happened when you entered "python cmath" in Google?
On Wed, Jul 29, 2009 at 9:24 PM, wrote:
> But I can't figure out where it gets "cmath". Searching the Python
> directory reveals no more than a test_cmath. The only cmath I can find
> is a header file in another directory turboc++\Borland\include\
>
> dir(cmath) reveals 23 functions overlapp
The following numerical approximation for Euler's Gamma function
is found in http://en.wikipedia.org/wiki/Lanczos_approximation
from cmath import *
# Coefficients used by the GNU Scientific Library
g = 7
p = [0.80993, 676.5203681218851, -1259.1392167224028,
771.32342877765313, -
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