code: public static ComplexFloatMatrix eigenvalues(FloatMatrix A) {
          A.assertSquare();
          FloatMatrix WR = new FloatMatrix(A.rows);
          FloatMatrix WI = WR.dup();
          SimpleBlas.geev('N', 'N', A.dup(), WR, WI, dummyFloat, dummyFloat);
  
          return new ComplexFloatMatrix(WR, WI);
      }
docs: Computes the eigenvalues of a general matrix.