- la4j-0.2.0.zip
- la4j
- bin
- la4j-0.2.0.jar
- LICENSE
- README
- src
- main
- java
- la4j
- decomposition
- err
- factory
- inversion
- io
- linear
- matrix
- util
- vector
- test
- java
- la4j
- decomposition
- inversion
- linear
- matrix
- vector
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/*
* Copyright 2011, Vladimir Kostyukov
*
* This file is part of la4j project (http://la4j.googlecode.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package la4j.inversion;
import la4j.err.LinearSystemException;
import la4j.err.MatrixInversionException;
import la4j.factory.Factory;
import la4j.linear.GaussianSolver;
import la4j.linear.LinearSystem;
import la4j.linear.LinearSystemSolver;
import la4j.matrix.Matrix;
import la4j.vector.Vector;
public class GaussianInvertor implements MatrixInvertor {
@Override
public Matrix inverse(Matrix matrix, Factory factory) throws MatrixInversionException {
if (matrix.rows() != matrix.columns()) throw new MatrixInversionException();
Matrix result = factory.createMatrix(matrix.rows(), matrix.columns());
LinearSystemSolver solver = new GaussianSolver();
try {
for (int i = 0; i < matrix.rows(); i++) {
Vector b = factory.createVector(matrix.rows());
b.set(i, 1.0);
LinearSystem system = new LinearSystem(matrix, b);
Vector x = system.solve(solver, factory);
result.setColumn(i, x);
}
} catch (LinearSystemException ex) {
throw new MatrixInversionException(ex.getMessage());
}
return result;
}
}
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I've received a Master's Degree in Computer Science at the IT Faculty of Altai State Technical University, Russia.
Currently, I am Software Engineer at Intel Corporation.