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∫ Straightforward numerical integration of systems of ordinary differential equations

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is it possible to get the subroutine which can give the result of each step of Bulirsch_stoer solver? I would like to use pyodesys to help me solve odes by...

I went through all the steps to install this with pip, but couldn't get it to work tests worked fine for pycvodes, but failed for pyodesys (just the native part)...

============================= test session starts ============================== platform linux2 -- Python 2.7.15, pytest-4.4.2, py-1.8.0, pluggy-0.11.0 rootdir: /home/nightwing collected 266 items anaconda3/envs/pyodesys/lib/python2.7/site-packages/pyodesys/native/tests/test_cvode.py F [ 0%] FFFFFFFFFFFFFFFFFFFxFFFFFFFFFFFF [ 12%] anaconda3/envs/pyodesys/lib/python2.7/site-packages/pyodesys/native/tests/test_gsl.py F [ 12%] FFFFFFFFFFFFFF...

I tried [your example on native odesys](http://hera.physchem.kth.se/~pyodesys/branches/master/examples/_bench_native_odesys_multi.html). Providing different parameters leads to different concentrations as it should. Now I noticed that if I construct the `odesys` using chempy, the results...

``` ___________________________________________________________ ERROR collecting pyodesys/native/tests/test_odeint.py ___________________________________________________________ ImportError while importing test module '/usr/ports/math/py-pyodesys/work-py27/pyodesys-0.12.3/pyodesys/native/tests/test_odeint.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: pyodesys/native/__init__.py:14: in from .cvode import NativeCvodeSys pyodesys/native/cvode.py:18:...

- [ ] Support for DAE systems (through `IDAS` from sundials) - [ ] `OdeSys.solve_bvp` method (and an alias for `solve_ivp = integrate`) - [ ] time integration through PETSc...

enhancement

In order to make source distribution free of Cython dependency, the source distribution (sdist) couldalso contain "cythonized" .cpp files.

enhancement