diff --git a/src/Sparse.cpp b/src/Sparse.cpp
index 293685e..11874ec 100644
--- a/src/Sparse.cpp
+++ b/src/Sparse.cpp
@@ -10,9 +10,9 @@ namespace Aurora
     {
     }
 
-    Sparse::Sparse(Matrix Cols, Matrix Rows, Matrix Values,size_t M, size_t N)
-    : mColIdxVector(Cols),
-    mRowIdxVector(Rows),
+    Sparse::Sparse(Matrix RowIdxs, Matrix ColIdxs , Matrix Values,size_t M, size_t N)
+    : mColIdxVector(ColIdxs),
+    mRowIdxVector(RowIdxs),
     mValueVector(Values),
     mM(M),
     mN(N)
@@ -26,4 +26,26 @@ namespace Aurora
                 && mColIdxVector.getDataSize() == mRowIdxVector.getDataSize() 
                 && mColIdxVector.getDataSize() == mValueVector.getDataSize();
     }
+    
+     Matrix& Sparse::getColVector() 
+    {
+        return mColIdxVector;
+    }
+
+     Matrix& Sparse::getRowVector() 
+    {
+        return mRowIdxVector;
+    }
+
+     Matrix& Sparse::getValVector() 
+    {
+        return mValueVector;
+    }
+    size_t Sparse::getM() const{
+        return mM;
+    }
+
+    size_t Sparse::getN() const{
+        return mN;
+    }
 }
\ No newline at end of file
diff --git a/src/Sparse.h b/src/Sparse.h
index 67fc470..e80b83e 100644
--- a/src/Sparse.h
+++ b/src/Sparse.h
@@ -7,9 +7,24 @@ namespace Aurora {
     {
     public:
         Sparse();
-        Sparse(Matrix Cols, Matrix Rows, Matrix Values,size_t M, size_t N);
+        Sparse(Matrix RowIdxs, Matrix ColIdxs, Matrix Values,size_t M, size_t N);
         ~Sparse();
         bool isValid() const;
+        Matrix& getColVector() ;
+        Matrix& getRowVector() ;
+        Matrix& getValVector() ;
+        /**
+         * @brief Rows
+         * 
+         * @return size_t 
+         */
+        size_t getM() const;
+        /**
+         * @brief Cols
+         * 
+         * @return size_t 
+         */
+        size_t getN() const;
         // TODO:add operators
     private:
         Matrix mColIdxVector;