jcobyla

COBYLA2 is an implementation of Powell's nonlinear derivative free constrained optimization that uses a linear approximation approach. The algorithm is a sequential trust region algorithm that employs linear approximations to the objective and constraint functions, where the approximations are formed by linear interpolation at n + 1 points in the space of the variables and tries to maintain a regular shaped simplex over iterations. It solves nonsmooth NLP with a moderate number of variables (about 100). Inequality constraints only. The initial point X is taken as one vertex of the initial simplex with zero being another, so, X should not be entered as the zero vector.

License	The MIT License
GroupId	de.xypron.jcobyla
ArtifactId	jcobyla
Last Version	1.4
Release Date	May 31, 2022
Type	jar
Description	jcobyla COBYLA2 is an implementation of Powell's nonlinear derivative free constrained optimization that uses a linear approximation approach. The algorithm is a sequential trust region algorithm that employs linear approximations to the objective and constraint functions, where the approximations are formed by linear interpolation at n + 1 points in the space of the variables and tries to maintain a regular shaped simplex over iterations. It solves nonsmooth NLP with a moderate number of variables (about 100). Inequality constraints only. The initial point X is taken as one vertex of the initial simplex with zero being another, so, X should not be entered as the zero vector.
Project URL	https://github.com/xypron/jcobyla
Source Code Management	https://github.com/xypron/jcobyla.git

Download jcobyla

Filename	Size
jcobyla-1.4.pom
jcobyla-1.4.jar	16 KB
jcobyla-1.4-sources.jar	15 KB
jcobyla-1.4-javadoc.jar	48 KB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/de.xypron.jcobyla/jcobyla/ -->
<dependency>
    <groupId>de.xypron.jcobyla</groupId>
    <artifactId>jcobyla</artifactId>
    <version>1.4</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/de.xypron.jcobyla/jcobyla/
implementation 'de.xypron.jcobyla:jcobyla:1.4'

Gradle Kotlin

// https://jarcasting.com/artifacts/de.xypron.jcobyla/jcobyla/
implementation ("de.xypron.jcobyla:jcobyla:1.4")

Apache Buildr

'de.xypron.jcobyla:jcobyla:jar:1.4'

Apache Ivy

<dependency org="de.xypron.jcobyla" name="jcobyla" rev="1.4">
  <artifact name="jcobyla" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='de.xypron.jcobyla', module='jcobyla', version='1.4')
)

Scala SBT

libraryDependencies += "de.xypron.jcobyla" % "jcobyla" % "1.4"

Leiningen

[de.xypron.jcobyla/jcobyla "1.4"]

Dependencies

test (1)

Group / Artifact	Type	Version
junit : junit	jar	4.13.2

Project Modules

There are no modules declared in this project.

Versions

Version
1.4 May 31, 2022
1.3 Jan 12, 2019
1.2 Apr 21, 2014
1.1 Jan 12, 2014