code: @Override
      public boolean setA(DMatrixRMaj A) {
          blockA.reshape(A.numRows,A.numCols,false);
          MatrixOps_DDRB.convert(A,blockA);
  
          return alg.setA(blockA);
      }
docs: Converts 'A' into a block matrix and call setA() on the block matrix solver.
  
  @param A The A matrix in the linear equation. Not modified. Reference saved.
  @return true if it can solve the system.