org.hipparchus.linear.LUDecomposer Maven / Gradle / Ivy
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* this work for additional information regarding copyright ownership.
* The Hipparchus project licenses this file to You 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,
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package org.hipparchus.linear;
/** Matrix decomposer using LU-decomposition.
* @since 1.3
*/
public class LUDecomposer implements MatrixDecomposer {
/** Threshold under which a matrix is considered singular. */
private final double singularityThreshold;
/**
* Creates a LU decomposer with specify threshold for several matrices.
* @param singularityThreshold threshold (based on partial row norm)
* under which a matrix is considered singular
*/
public LUDecomposer(final double singularityThreshold) {
this.singularityThreshold = singularityThreshold;
}
/** {@inheritDoc} */
@Override
public DecompositionSolver decompose(final RealMatrix a) {
return new LUDecomposition(a, singularityThreshold).getSolver();
}
}