sp.hyp2f1(10,5,-300.5,0.5)
-6.5184949735e+156
The present implementation of the function in scipy, involves one Euler
Transform followed by the application of Power Series (as a and b turn
negative after Euler Transform is applied once). This most probably
blows up the values of function as |c||a|
In an attempt to analyze the accuracy of hyp2f1,
Different cases mentioned in Abramowitz (
http://people.math.sfu.ca/~cbm/aands/page_561.htmhttp://bl-1.com/click/load/UmcPPANhUGxVMQNuUGU-b0231
)
and also in the Thesis on 'Computation of Hypergeometric functions
If you are interested in the hypergeometric numerical evaluation, it's
probably a good idea to take a look at this recent master's thesis
written on the problem:
http://people.maths.ox.ac.uk/porterm/research/pearson_final.pdfhttp://bl-1.com/click/load/BDEKOABvUWAAYgNhATc-b0231
The thesis is
On Wed, Feb 12, 2014 at 2:11 AM, Pauli Virtanen p...@iki.fi wrote:
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Hi
It's not so often someone wants to work on scipy.special, so you'd be
welcome to improve it :)
That's great! Thanks a lot for your guidance. .
-
Spherical harmonics
16.02.2014 23:34, Jennifer stone kirjoitti:
[clip]
Yeah, many of the known failures seem to revolve around hyp2f1. An
unexplained inclination towards hypergeometric functions really
tempts me to plunge into this. If it's too risky, I can work on
this after the summers, as I would have gained
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Hi,
04.02.2014 20:30, jennifer stone kirjoitti:
3. As stated earlier, we have spherical harmonic functions (with
much scope
for dev) we are yet to have elliptical and cylindrical harmonic
function, which may be developed.
This sounds very
Hi,
08.02.2014 06:16, Stéfan van der Walt kirjoitti:
On 8 Feb 2014 04:51, Ralf Gommers ralf.gomm...@gmail.com wrote:
Members of the dipy team would also be interested.
That's specifically for the spherical harmonics topic right?
Right. Spherical harmonics are used as bases in many of
On Thu, Feb 6, 2014 at 11:59 AM, Stéfan van der Walt ste...@sun.ac.zawrote:
On Tue, 04 Feb 2014 12:21:58 +0100, Ralf Gommers wrote:
Finding a suitable mentor for whatever project Jennifer chooses is an
important factor in the choice of project, so I have to ask: do you have
the bandwidth
On 8 Feb 2014 04:51, Ralf Gommers ralf.gomm...@gmail.com wrote:
Members of the dipy team would also be interested.
That's specifically for the spherical harmonics topic right?
Right. Spherical harmonics are used as bases in many of DiPy's
reconstruction algorithms.
You are right, though,
On Tue, 04 Feb 2014 12:21:58 +0100, Ralf Gommers wrote:
Finding a suitable mentor for whatever project Jennifer chooses is an
important factor in the choice of project, so I have to ask: do you have
the bandwidth to be a mentor or help out this summer?
I completely agree. I have time to be
On Fri, Jan 31, 2014 at 11:34 AM, Stéfan van der Walt ste...@sun.ac.zawrote:
On Fri, 31 Jan 2014 04:31:01 +0530, jennifer stone wrote:
3. As stated earlier, we have spherical harmonic functions (with much
scope
for dev) we are yet to have elliptical and cylindrical harmonic function,
On Fri, Jan 31, 2014 at 12:01 AM, jennifer stone
jenny.stone...@gmail.comwrote:
With GSoC 2014 being round the corner, I hereby put up few projects for
discussion that I would love to pursue as a student.
Guidance, suggestions are cordially welcome:-
1. If I am not mistaken, contour
3. As stated earlier, we have spherical harmonic functions (with much scope
for dev) we are yet to have elliptical and cylindrical harmonic function,
which may be developed.
This sounds very doable. How much work do you think would be involved?
As Stefan so rightly pointed out, the
On Fri, Jan 31, 2014 at 11:34 AM, Stéfan van der Walt ste...@sun.ac.zawrote:
On Fri, 31 Jan 2014 04:31:01 +0530, jennifer stone wrote:
3. As stated earlier, we have spherical harmonic functions (with much
scope
for dev) we are yet to have elliptical and cylindrical harmonic
function,
On Fri, 31 Jan 2014 04:31:01 +0530, jennifer stone wrote:
3. As stated earlier, we have spherical harmonic functions (with much scope
for dev) we are yet to have elliptical and cylindrical harmonic function,
which may be developed.
As stated before, I am personally interested in seeing the
Hi Jennifer,
On 31 January 2014 00:01, jennifer stone jenny.stone...@gmail.com wrote:
With GSoC 2014 being round the corner, I hereby put up few projects for
discussion that I would love to pursue as a student.
Guidance, suggestions are cordially welcome:-
1. If I am not mistaken,
On Thu, Jan 30, 2014 at 4:01 PM, jennifer stone jenny.stone...@gmail.comwrote:
With GSoC 2014 being round the corner, I hereby put up few projects for
discussion that I would love to pursue as a student.
Guidance, suggestions are cordially welcome:-
1. If I am not mistaken, contour
With GSoC 2014 being round the corner, I hereby put up few projects for
discussion that I would love to pursue as a student.
Guidance, suggestions are cordially welcome:-
1. If I am not mistaken, contour integration is not supported by SciPy; in
fact even line integrals of real functions is yet
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