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PyDDE is not fully compatible with the approach to C-based back ends that is taken in PyDSTool, although maybe the future setup installer for PyDSTool will be able to compile the C code in a platform independent way. There are DDE solvers by Hairer and Wanner which we would rather interface to, since they are related to the solvers for ODEs we already have wrapped and we could re-use a lot of...
2009-09-11 03:30:22 UTC in PyDSTool
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The only thing you can delay at the moment are delta function impulses (see the tests/ directory where there are some filenames with "delay" in the title, showing of a somewhat complex implementation of delayed impulse that we currently have). There are DDE integrators available but no-one has finished wrapping them so that we can use them in PyDSTool. If you have some background in...
2009-09-09 02:09:42 UTC in PyDSTool
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64 bit python lib issue that is fixed in SVN.
2009-03-18 16:57:45 UTC in PyDSTool
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robclewley changed the public information on the PyDSTool project.
2009-03-11 04:57:23 UTC in PyDSTool
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This version improves the support for hybrid systems and makes model inference and parameter estimation problems more tractable. It now includes support for quadratic interpolation between data points in Trajectory objects. It also includes several code & API optimizations and bug fixes.
More to come in the build-up to a bigger facelift and expansion in v0.90. See release notes for...
2008-11-13 20:26:37 UTC in PyDSTool
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Hi John,
There are no BVP solvers at this time. I started laying out some classes to do this a while ago but didn't get too far. I would really like some help from someone to add this functionality. If you are comfortable working with Python and numerical methods in general maybe you could volunteer?
As for tutorials, we have just added it as a first step. It assumes you already know about...
2008-11-06 20:58:51 UTC in PyDSTool
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This is a relatively minor update with just a few new features, and several bug fixes and API improvements. More to come in the build-up to a bigger facelift and expansion in v0.90. See release notes for details.
2008-06-03 19:51:40 UTC in PyDSTool
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Fixed in SVN, will be updated in next release. Thanks!
2007-09-05 16:45:39 UTC in PyDSTool
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There are lots of minor improvements and fixes in this version, but a major feature is the support for user-defined functions for continuation using PyCont.
Also added: some basic phase-plane tools, calculation of phase response curves for oscillators and support for some special math functions. See release notes for details.
2007-07-12 02:48:10 UTC in PyDSTool
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Fixed in SVN: http://jay.cam.cornell.edu/svn/PyDSTool/trunk/
Will be propagated to v0.85 when it comes out. Thanks.
2007-04-24 19:38:15 UTC in PyDSTool
