pykinsol 0.1.9

Documentation

Autogenerated API documentation is found here.

Installation

Simplest way to install pykinsol is to use the conda package manager:

$ conda install -c bjodah pykinsol pytest
$ python -m pytest --pyargs pykinsol

tests should pass.

Binary distribution is available here: https://anaconda.org/bjodah/pykinsol

Source distribution is available here: https://pypi.python.org/pypi/pykinsol

To compile from source you may proceed e.g. as follows:

$ LLAPACK=openblas python3.4 setup.py install --user

where we specified specifically what LAPACK implementation we used for building SUNDIALS.

Examples

See examples/, and rendered jupyter notebooks here: http://hera.physchem.kth.se/~pykinsol/branches/master/examples

Here is a simple example:

>>> def f(x, fout):
...     fout[0] = x[0] + (x[0] - x[1])**3/2 - 1
...     fout[1] = x[1] + (x[1] - x[0])**3/2
...
>>> def j(x, Jout, fx):
...     Jout[0, 0] =  1 + 3/2 * (x[0] - x[1])**2
...     Jout[0, 1] =  -3/2 * (x[0] - x[1])**2
...     Jout[1, 0] =  -3/2 * (x[1] - x[0])**2
...     Jout[1, 1] =  1 + 3/2 * (x[1] - x[0])**2
...
>>> from pykinsol import solve
>>> result = solve(f, j, [0, 0])
>>> assert result['success']
>>> print(result['x'])  # doctest: +SKIP
[ 0.84116389  0.15883611]

License

The source code is Open Source and is released under the simplified 2-clause BSD license. See LICENSE for further details.

Contributors are welcome to suggest improvements at https://github.com/bjodah/pykinsol

Author

Björn I. Dahlgren, contact:

• gmail address: bjodah