docs: public int nullity() {
          if( is64 ) {
              return SingularOps_DDRM.nullity((SingularValueDecomposition_F64)svd, 10.0 * UtilEjml.EPS);
          } else {
              return SingularOps_FDRM.nullity((SingularValueDecomposition_F32)svd, 5.0f * UtilEjml.F_EPS);
          }
      }