Commit ecf99b66 authored by Guillaume Sagnol's avatar Guillaume Sagnol

release OK

parent 3c65c0e6
......@@ -74,4 +74,19 @@ v 1.0.1, 27.08.14:
* Improved implementation of the retrieval of optimal primal variables with CPLEX.
With the previous versions there was an important overhead at the end of the
solving process to get the optimal values, this is now working much faster.
* Nicer documentation.
\ No newline at end of file
* Nicer documentation.
v 1.0.2, 30.01.15:
Major release with following new functionalities:
* Support (read and write) for ``.cbf`` problem files (`conic benchmark format <http://cblib.zib.de/>`_ ), which should be the standard for (mixed integer) conic optimization problems, cf. :func:`write_to_file <picos.Problem.write_to_file>` and :func:`import_cbf <picos.tools.import_cbf>` .
* Improved support for complex SDP (more efficient implementation of :func:`to_real() <picos.Problem.to_real>` , corrected bug in the implementation of the scalar product for Hermitian matrices and the conjugate of a complex expression, support for equality constraints involving complex coefficients)
* Support for inequalities involving the sum of k largest elements of an affine expression, or the k largest eigenvalues of a symmetric matrix expression, cf. the functions :func:`sum_k_largest() <picos.tools.sum_k_largest>` , :func:`sum_k_smallest() <picos.tools.sum_k_smallest>` , :func:`sum_k_largest_lambda() <picos.tools.sum_k_largest_lambda>`, :func:`sum_k_smallest_lambda() <picos.tools.sum_k_smallest_lambda>`, :func:`lambda_max() <picos.tools.lambda_max>` and :func:`lambda_min() <picos.tools.lambda_min>` .
* Support for inequalities involving the :math:`L_{p,q}-` norm of an affine expresison, cf. :func:`norm() <picos.tools.norm>` .
* New ``vtype`` for antisymmetric matrix variables ( :attr:`vtype <picos.Variable.vtype>` ``= antisym``).
* Constraints can be specified as membership in a :class:`Set <picos.Set>` . Sets can be created by the functions :func:`ball() <picos.tools.ball>` , :func:`simplex() <picos.tools.simplex>`, and :func:`truncated_simplex() <picos.tools.truncated_simplex>` .
* New functions :func:`maximize <picos.Problem.maximize>` and :func:`maximize <picos.Problem.minimize>` to specify the objective function of a problem and solve it.
And many thanks to `Petter Wittek <http://peterwittek.com/>`_ for the following improvements, who were motivated by the use of PICOS in the package `ncpol2sdpa <http://peterwittek.github.io/ncpol2sdpa/>`_ for optimization over noncommutative polynomials:
* More efficient implementation of the writer to the sparse - SDPA file format (:func:`write_to_file <picos.Problem.write_to_file>`)
* Hadamard (elementwise) product of affine expression is implemented, as an overload of the ``^`` operator, cf. an example :ref:`here <overloads>` .
* Partial transposition of an Affine Expression, cf. :func:`partial_transpose() <picos.tools.partial_transpose>` or the :attr:`Tx <picos.AffinExp.Tx>` attribute.
\ No newline at end of file
......@@ -2,6 +2,7 @@
CHANGES.txt
LICENSE.txt
README.txt
monomials.txt
setup.py
doc/api.rst
doc/changes.rst
......@@ -15,8 +16,10 @@ doc/index.rst
doc/intro.rst
doc/optdes.rst
doc/problem.rst
doc/summary.rst
doc/tools.rst
doc/tuto.rst
doc/tuto_summary.rst
doc/_static/picos_big_trans.gif
doc/_static/css/theme.css
doc/_templates/download.html
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment