Re: [ojAlgo-user] Using ojalgo libray as QP solver

[Anders P. <an...@op...>]

What info about the matrices are you looking for?

The QuadraticSolver javadoc states: "You construct instances by using the QuadraticSolver.Builder class. It will return an appropriate subclass for you. It's recommended that you first create a QuadraticExpressionsModel and feed that to the QuadraticSolver.Builder."

http://ojalgo.org/generated/org/ojalgo/optimisation/quadratic/QuadraticSolver.html

With the latest changes I've made you should no longer use QuadraticExpressionsModel. Instead you should use its parent class ExpressionsBasedModel. Models also have a getDefaultSolver() method that will call the appropriate/default Builder for you.

The list archives are searchable...

http://sourceforge.net/search/index.php?group_id=79000&type_of_search=mlists&q=quadratic&ml_name%5B%5D=ojalgo-user&posted_date_start=&posted_date_end=&form_submit=Search

/Anders


On 12 apr 2012, at 14:53, Amandeep Gautam wrote:

> Hi,
>    I want to use ojalgo library for Quadratic programming but have the following problem: The frmulation of the quadratic program is given as
> 
> min 1/2 [X]T[Q][X] - [C]T[X]
> when [AE][X] == [BE]
> and [AI][X] <= [BI] 
> 
> but no information about [BI], [BE], [AI], [AE] and [Q] has been given. Also are no constructors through which you can input the value of these parameters.
> 
> Looking forward for a positive response.
> 
> Regards,
> Aman Deep Gautam
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