Add Matrix constructor with default value type,and isComplex function.

src/Matrix.h

@@ -37,7 +37,8 @@ namespace Aurora {
             friend class Matrix;
         };
         explicit Matrix(std::shared_ptr<double> aData = std::shared_ptr<double>(),
-                        std::vector<int> aInfo = std::vector<int>());
+                        std::vector<int> aInfo = std::vector<int>(),
+                        ValueType aValueType = Normal);
 
         explicit Matrix(const Matrix::MatrixSlice& slice);
 
@@ -195,6 +196,18 @@ namespace Aurora {
             mValueType = aValueType;
         }
 
+        /**
+         * return true if the valueType is complex,
+         * @return
+         */
+        bool isComplex() const {
+            if(mValueType == Complex)
+            {
+                return true;
+            }
+            return false;
+        }
+
     private:
         ValueType mValueType = Normal;
         std::shared_ptr<double> mData;