hi all,
in my code, i use the function 'logsumexp' from scipy.maxentropy a
lot. as far as i can tell, this function has no vectorized version
that works on an m-x-n matrix. i might be doing something wrong here,
but i found that this function can run extremely slowly if used as
follows: i have an
On Sat, Oct 17, 2009 at 8:36 AM, per freem perfr...@gmail.com wrote:
hi all,
in my code, i use the function 'logsumexp' from scipy.maxentropy a
lot. as far as i can tell, this function has no vectorized version
that works on an m-x-n matrix. i might be doing something wrong here,
but i found
On Sat, Oct 17, 2009 at 9:36 AM, per freem perfr...@gmail.com wrote:
hi all,
in my code, i use the function 'logsumexp' from scipy.maxentropy a
lot. as far as i can tell, this function has no vectorized version
that works on an m-x-n matrix. i might be doing something wrong here,
but i
Adam Ginsburg wrote:
Hi folks,
I'm trying to write a ray-tracing code for which high precision is
required. I also need to use square roots. However, math.sqrt and
numpy.sqrt seem to only use single-precision floats. Is there a
simple way to make sqrt use higher precision? Alternately,
The default precision is double unless yue specify otherwise (float32 or long
double (float128 or float96))
You can see this from:
f(fsolve(f,1.01))
# 1.7763568394002505e-15
The last line should be:
fsolve(f,1.01) - float64(1.034324523462345)
8.8817841970012523e-16
Nadav
-הודעה
On Sat, Oct 17, 2009 at 12:08 PM, Adam Ginsburg
adam.ginsb...@colorado.eduwrote:
Hi folks,
I'm trying to write a ray-tracing code for which high precision is
required. I also need to use square roots. However, math.sqrt and
numpy.sqrt seem to only use single-precision floats. Is there a
2009/10/17 Adam Ginsburg adam.ginsb...@colorado.edu:
My code is actually wrong but I still have the problem I've
identified that sqrt is leading to precision errors. Sorry about the
earlier mistake.
I think you'll find that numpy's sqrt is as good as it gets for double
precision. You can
Hi again, I apologize, the mistake was entirely my own. Sqrt's do the
right thing
Adam
On Sat, Oct 17, 2009 at 12:17 PM, Adam Ginsburg
adam.ginsb...@colorado.edu wrote:
My code is actually wrong but I still have the problem I've
identified that sqrt is leading to precision errors.
On Sat, Oct 17, 2009 at 6:49 AM, Darren Dale dsdal...@gmail.com wrote:
numpy's functions, especially ufuncs, have had some ability to support
subclasses through the ndarray.__array_wrap__ method, which provides
masked arrays or quantities (for example) with an opportunity to set
the class and
On Sat, Oct 17, 2009 at 2:02 PM, Charles R Harris
charlesr.har...@gmail.com wrote:
On Sat, Oct 17, 2009 at 11:54 AM, josef.p...@gmail.com wrote:
On Sat, Oct 17, 2009 at 1:20 PM, Charles R Harris
charlesr.har...@gmail.com wrote:
On Sat, Oct 17, 2009 at 9:36 AM, per freem
On Sat, Oct 17, 2009 at 5:27 PM, josef.p...@gmail.com wrote:
On Sat, Oct 17, 2009 at 2:02 PM, Charles R Harris
charlesr.har...@gmail.com wrote:
On Sat, Oct 17, 2009 at 11:54 AM, josef.p...@gmail.com wrote:
On Sat, Oct 17, 2009 at 1:20 PM, Charles R Harris
charlesr.har...@gmail.com
On Sat, Oct 17, 2009 at 7:46 PM, Charles R Harris
charlesr.har...@gmail.com wrote:
On Sat, Oct 17, 2009 at 5:27 PM, josef.p...@gmail.com wrote:
On Sat, Oct 17, 2009 at 2:02 PM, Charles R Harris
charlesr.har...@gmail.com wrote:
On Sat, Oct 17, 2009 at 11:54 AM, josef.p...@gmail.com
On Sat, Oct 17, 2009 at 8:00 PM, josef.p...@gmail.com wrote:
On Sat, Oct 17, 2009 at 7:46 PM, Charles R Harris
charlesr.har...@gmail.com wrote:
On Sat, Oct 17, 2009 at 5:27 PM, josef.p...@gmail.com wrote:
On Sat, Oct 17, 2009 at 2:02 PM, Charles R Harris
charlesr.har...@gmail.com wrote:
On Sat, Oct 17, 2009 at 9:13 AM, Loïc BERTHE berthe.l...@gmail.com wrote:
Hi,
I would like to create my own class of record array to deal with units.
Here is the code I used, inspired from
14 matches
Mail list logo
