docs: public static double det( DMatrixSparseCSC A ) {
          LUSparseDecomposition_F64<DMatrixSparseCSC> alg = DecompositionFactory_DSCC.lu(FillReducing.NONE);
  
          if( alg.inputModified() ) {
              A = A.copy();
          }
  
          if( !alg.decompose(A) )
              return 0.0;
          return alg.computeDeterminant().real;
      }