On Tue, May 4, 2010 at 9:23 PM, josef.p...@gmail.com wrote:
In [2] I didn't see anything about higher derivatives, so to get the
Hessian I still had to do a finite difference (Jacobian) on the
complex_step_grad. Even then the results look pretty good.
Yes, the traditional complex step does
Just to make this thread more useful for someone interested in these
topics, this seems to be the book on automatic differentiation (it's
one of the references in the autodiff website)
Evaluating Derivatives: Principles and Techniques of Algorithmic
Differentiation (2nd ed.), by Andreas Griewank
Dear Numpy Users,
I want to fit a 3d plane into a 3d point cloud and I saw that one could use
svd for this purpose. So as I am very fond of numpy I saw that svd was
implementented in the linalg module.
Currently I have a numpy array called xyz with n lines (number of points)
and 3 columns
Hi all,
Under Ubuntu, the NumPy headers are dumped under
/usr/include/python2.6. This is not the location that should be
exposed when another copy of NumPy is installed. The attached patch
lets
from numpy.distutils.system_info import get_info
print get_info['numpy']
return the correct path.
Hi Peter
On 5 May 2010 10:02, Peter Schmidtke pschmid...@mmb.pcb.ub.es wrote:
u,s,vh=numpy.linalg.linalg.svd(M)
Then in the matlab analog they use the last column of vh to get the a,b,c
coefficients for the equation
a,b,c=vh[:, -1] in numpy
Note that vh is the conjugate transpose of v. You
Hi guys,
I've a C++ code that calls a python script. The python script, in turn, should
use C modules to retrieve data (arrays).
I'm having some problem with import_array.
I've placed the import_array() just after the initialization of the interpreter
and after PyInit_module
I'm forwarding this to the numpy list as well since it seems to be f2py related therefore belonging here really.C.Begin forwarded message:From: Charles سمير Doutriaux doutria...@llnl.govDate: April 30, 2010 9:10:08 AM PDTTo: SciPy Developers List scipy-...@scipy.orgSubject: Re: [SciPy-Dev] numpy
On 05/04/2010 04:38 PM, Austin Bingham wrote:
I admit I'm having trouble formulating questions to address my
problems, so please bear with me.
Say I've got a shared library of utilities for working with numpy
arrays. It's intended to be used in multiple extension modules and in
some places
I apologize for not following up on this thread right away. I was sick for
a couple of days and then there were several major severe weather outbreaks
that required me to spend more time at work. With this said, I've resumed
trying to build a DMG with Python2.5.
The export suggestion below
