docs: public static DMatrixRMaj symmetricWithEigenvalues(int num, Random rand , double ...eigenvalues ) {
          DMatrixRMaj V = RandomMatrices_DDRM.orthogonal(num,num,rand);
          DMatrixRMaj D = CommonOps_DDRM.diag(eigenvalues);
  
          DMatrixRMaj temp = new DMatrixRMaj(num,num);
  
          CommonOps_DDRM.mult(V,D,temp);
          CommonOps_DDRM.multTransB(temp,V,D);
  
          return D;
      }