<dependency> <groupId>org.jblas</groupId> <artifactId>jblas</artifactId> <version>1.2.4</version> </dependency> import org.jblas.DoubleMatrix; import org.jblas.Eigen; import org.jblas.Solve; DoubleMatrix matrix = new DoubleMatrix(3, 3, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0); DoubleMatrix vector = new DoubleMatrix(3, 1, 1.0, 2.0, 3.0); DoubleMatrix result = matrix.mmul(vector); double dotProduct = vector.dot(matrix); DoubleMatrix transpose = matrix.transpose(); DoubleMatrix x = Solve.solve(matrix, vector); Eigen eigen = Eigen.eigenvectors(matrix); DoubleMatrix eigenvalues = eigen.getRealEigenvalues(); DoubleMatrix eigenvectors = eigen.getEigenVectors();