diff --git a/src/Matrix.cpp b/src/Matrix.cpp
index 78a8041..e08c326 100644
--- a/src/Matrix.cpp
+++ b/src/Matrix.cpp
@@ -335,8 +335,8 @@ namespace Aurora {
         double *startPointer = getData() + (rowStride * rowOffset
                                             + colStride * colOffset
                                             + sliceStride * sliceOffset) * getValueType();
-        int size1 = getDimSize(allDimIndex[0]);
-        int stride1 = strides[allDimIndex[0]];
+        int size1 = allDimIndex.empty()?1:getDimSize(allDimIndex[0]);
+        int stride1 = allDimIndex.empty()?1:strides[allDimIndex[0]];
         switch (mode) {
             //matrix mode
             case 2:{
@@ -479,6 +479,49 @@ namespace Aurora {
         return *this;
     }
 
+    Matrix::MatrixSlice &Matrix::MatrixSlice::operator=(double value) {
+        if(!mData){
+            std::cerr <<"Assign value fail!Des data pointer is null!";
+            return *this;
+        }
+        if (mSliceMode!=0) {
+            std::cerr <<"Assign value fail!Des slicemode is"<<mSliceMode<<", not scalar mode!";
+            return *this;
+        }
+        if (mSize!=1) {
+            std::cerr <<"Assign value fail!Des  size:"<<mSize<<", not scalar mode!";
+            return *this;
+        }
+        if (mType!=Normal) {
+            std::cerr <<"Assign value fail!Des type is complex!";
+            return *this;
+        }
+        mData[0]=value;
+        return *this;
+    }
+
+    Matrix::MatrixSlice &Matrix::MatrixSlice::operator=(std::complex<double> value) {
+        if(!mData){
+            std::cerr <<"Assign value fail!Des data pointer is null!";
+            return *this;
+        }
+        if (mSliceMode!=0) {
+            std::cerr <<"Assign value fail!Des slicemode is"<<mSliceMode<<", not scalar mode!";
+            return *this;
+        }
+        if (mSize!=1) {
+            std::cerr <<"Assign value fail!Des  size:"<<mSize<<", not scalar mode!";
+            return *this;
+        }
+        if (mType!=Complex) {
+            std::cerr <<"Assign value fail!Des type is not complex!";
+            return *this;
+        }
+        mData[0]=value.real();
+        mData[1]=value.imag();
+        return *this;
+    }
+
     Matrix Matrix::MatrixSlice::toMatrix() const {
         double * data = (double *) mkl_malloc(mSize*(mSize2>0?mSize2:1) * sizeof(double)*mType, 64);
 
diff --git a/src/Matrix.h b/src/Matrix.h
index c271d83..24d8707 100644
--- a/src/Matrix.h
+++ b/src/Matrix.h
@@ -2,6 +2,7 @@
 #define MATRIX_H
 
 #include <memory>
+#include <complex>
 #include <vector>
 
 
@@ -22,6 +23,8 @@ namespace Aurora {
             MatrixSlice(int aSize,int aStride, double* aData,ValueType aType = Normal,int SliceMode = 1,int aSize2 = 0, int aStride2 = 0);
             MatrixSlice& operator=(const MatrixSlice& slice);
             MatrixSlice& operator=(const Matrix& matrix);
+            MatrixSlice& operator=(double value);
+            MatrixSlice& operator=(std::complex<double> value);
             Matrix toMatrix() const;
         private:
             int mSliceMode = 0;//0 scalar, 1 vector, 2 Matrix
diff --git a/src/main.cxx b/src/main.cxx
index b039de5..64937e2 100644
--- a/src/main.cxx
+++ b/src/main.cxx
@@ -16,56 +16,53 @@
 
 int main() {
     {
-        double * dataA =new double[8];
-        double * dataB =new double[8];
-        double * dataC =new double[4];
+        double *dataA = new double[8];
+        double *dataB = new double[8];
+        double *dataC = new double[4];
         for (int i = 0; i < 8; ++i) {
-            dataA[i]=(double)(i-3);
-            dataB[i]=(double)(i+2);
-            dataC[i/2]=(double)(i+9);
+            dataA[i] = (double) (i - 3);
+            dataB[i] = (double) (i + 2);
+            dataC[i / 2] = (double) (i + 9);
         }
-        Aurora::Matrix A = Aurora::Matrix::New(dataA,2,2,2);
+        Aurora::Matrix A = Aurora::Matrix::New(dataA, 2, 2, 2);
         printf("A:\r\n");
         A.printf();
-        Aurora::Matrix B = Aurora::Matrix::New(dataB,2,2,2);
+        Aurora::Matrix B = Aurora::Matrix::New(dataB, 2, 2, 2);
         printf("B:\r\n");
         B.printf();
         printf("A slice 1 = B slice 0\r\n");
-        A(Aurora::$,Aurora::$,1) = B(Aurora::$,Aurora::$,0);
+        A(Aurora::$, Aurora::$, 1) = B(Aurora::$, Aurora::$, 0);
         printf("B:\r\n");
         B.printf();
         printf("New A:\r\n");
         A.printf();
         printf("A Row slice 1 = B Row slice 0\r\n");
-        A(1,Aurora::$,Aurora::$) = B(0,Aurora::$,Aurora::$);
+        A(1, Aurora::$, Aurora::$) = B(0, Aurora::$, Aurora::$);
         printf("B:\r\n");
         B.printf();
         printf("New A:\r\n");
         A.printf();
 
         printf("A Col slice 1 = B Col slice 0\r\n");
-        A(Aurora::$,1,Aurora::$) = B(Aurora::$,0,Aurora::$);
+        A(Aurora::$, 1, Aurora::$) = B(Aurora::$, 0, Aurora::$);
         printf("B:\r\n");
         B.printf();
         printf("New A:\r\n");
         A.printf();
 
-            printf("New A col slice 1 toMatrix:\r\n");
-            auto Ds = A(Aurora::$,1,Aurora::$);
-            auto D = Ds.toMatrix();
-            D.printf();
+        printf("New A col slice 1 toMatrix:\r\n");
+        auto Ds = A(Aurora::$, 1, Aurora::$);
+        auto D = Ds.toMatrix();
+        D.printf();
 
 
-        Aurora::Matrix C = Aurora::Matrix::New(dataC,2,2);
+        Aurora::Matrix C = Aurora::Matrix::New(dataC, 2, 2);
         printf("C:\r\n");
         C.printf();
-        A(Aurora::$,Aurora::$,0) = C;
+        A(1, 1, 1) = 1024.0;
         printf("New A:\r\n");
         A.printf();
-        return 0;
-
-    }
-    {
+    }{
         double * dataA =new double[9];
         double * dataB =new double[9];
         for (int i = 0; i < 9; ++i) {