package math; import java.util.ArrayList; import java.util.List; import org.apache.commons.math3.linear.*; import org.apache.commons.math3.linear.EigenDecomposition; public class pro { public static void main(String[] args) { pro test=new pro(); } pro(){ RealMatrix co = new Array2DRowRealMatrix(new double[][] { { 2, 3, -2 }, { -1, 7, 6 }, { 4, -3, -5 } }, false); EigenDecomposition m =new EigenDecomposition(co); RealVector v=m.getEigenvector(0); } }