[SciPy-user] DASSL in SciPy

Ryan Gutenkunst rng7 at cornell.edu
Wed Jul 27 07:11:35 CDT 2005

I'm somewhat of an f2py newbie, but I recently wrapped up one new 
integrator. (LSODAR, and I'd love to see that work make it into the 
SciPy core.)

I also have a half-completed wrapper of DASKR 
(http://www.netlib.org/ode/), which is a successor to DASPK 2.0 that 
adds root-finding. I ran into some mysterious problems, but haven't 
spent too much effort on them yet. Zhiwen, I'll contact you off-list in 
a day or so. Maybe we can work together to get it working well and 
design a convenient interface.

In terms of getting things into SciPy, I'm not at all familiar with the 
process, or what conventions exist. Is there a set of developer 
documentation with guidelines, etc? Or will one of the devs hold my 
hand when it comes to tweaking the wrapper for SciPy inclusion? :-)


On Jul 26, 2005, at 11:34 PM, Robert Kern wrote:
> Zhiwen Chong wrote:
>> Hello,
>> Does anyone know if any work is being done to include dassl or daspk  
>> into SciPy?
>> Or is F2PY the way to go?
> I don't think anyone is actively working on such. DASSL at least is 
> part of ODEPACK which is partially wrapped for scipy.integrate. If you 
> would like to take a crack at wrapping DASSL, we would welcome such a 
> contribution. F2PY is by far the preferred method for new wrappers.
> DASPK 2.0[1] is public domain and suitable for inclusion in Scipy, but 
> I don't believe anyone has wrapped it, yet. DASPK 3, however, is only 
> available for research purposes, so is not suitable for Scipy.
> [1] http://www.engineering.ucsb.edu/~cse/software.html

Ryan Gutenkunst               |
Cornell Dept. of Physics      |       "It is not the mountain
                               |        we conquer but ourselves."
Clark 535 / (607)255-6068     |        -- Sir Edmund Hillary
AIM: JepettoRNG               |

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