diff --git a/CLion/CourseBook/0502_TSMatrix/TSMatrix-main.c b/CLion/CourseBook/0502_TSMatrix/TSMatrix-main.c
index ca86421..62631e4 100644
--- a/CLion/CourseBook/0502_TSMatrix/TSMatrix-main.c
+++ b/CLion/CourseBook/0502_TSMatrix/TSMatrix-main.c
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         TSMatrix Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("█ Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/CLion/CourseBook/0502_TSMatrix/TSMatrix.c b/CLion/CourseBook/0502_TSMatrix/TSMatrix.c
index f379b03..7bbf239 100644
--- a/CLion/CourseBook/0502_TSMatrix/TSMatrix.c
+++ b/CLion/CourseBook/0502_TSMatrix/TSMatrix.c
@@ -89,7 +89,7 @@ Status CopySMatrix(TSMatrix M, TSMatrix* T) {
  *
  * Q = M + N。
  */
-Status AddSMatri(TSMatrix M, TSMatrix N, TSMatrix* Q) {
+Status AddSMatrix(TSMatrix M, TSMatrix N, TSMatrix* Q) {
     int m, n, k;
     
     if(M.mu != N.mu || M.nu != N.nu) {
diff --git a/CLion/CourseBook/0502_TSMatrix/TSMatrix.h b/CLion/CourseBook/0502_TSMatrix/TSMatrix.h
index 141c691..81cbd8f 100644
--- a/CLion/CourseBook/0502_TSMatrix/TSMatrix.h
+++ b/CLion/CourseBook/0502_TSMatrix/TSMatrix.h
@@ -66,7 +66,7 @@ Status CopySMatrix(TSMatrix M, TSMatrix* T);
  *
  * Q = M + N。
  */
-Status AddSMatri(TSMatrix M, TSMatrix N, TSMatrix* Q);
+Status AddSMatrix(TSMatrix M, TSMatrix N, TSMatrix* Q);
 
 /*
  * 矩阵减法
diff --git a/CLion/CourseBook/0503_RLSMatrix/RLSMatrix-main.c b/CLion/CourseBook/0503_RLSMatrix/RLSMatrix-main.c
index 267d806..3d3167f 100644
--- a/CLion/CourseBook/0503_RLSMatrix/RLSMatrix-main.c
+++ b/CLion/CourseBook/0503_RLSMatrix/RLSMatrix-main.c
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         RLSMatrix Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("█ Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/CLion/CourseBook/0503_RLSMatrix/RLSMatrix.c b/CLion/CourseBook/0503_RLSMatrix/RLSMatrix.c
index de86453..9a9870e 100644
--- a/CLion/CourseBook/0503_RLSMatrix/RLSMatrix.c
+++ b/CLion/CourseBook/0503_RLSMatrix/RLSMatrix.c
@@ -98,7 +98,7 @@ Status CopySMatrix(RLSMatrix M, RLSMatrix* T) {
  *
  * Q = M + N。
  */
-Status AddSMatri(RLSMatrix M, RLSMatrix N, RLSMatrix* Q) {
+Status AddSMatrix(RLSMatrix M, RLSMatrix N, RLSMatrix* Q) {
     int m, n, k;
     
     if(M.mu != N.mu || M.nu != N.nu) {
diff --git a/CLion/CourseBook/0503_RLSMatrix/RLSMatrix.h b/CLion/CourseBook/0503_RLSMatrix/RLSMatrix.h
index d712bce..bb1c595 100644
--- a/CLion/CourseBook/0503_RLSMatrix/RLSMatrix.h
+++ b/CLion/CourseBook/0503_RLSMatrix/RLSMatrix.h
@@ -68,7 +68,7 @@ Status CopySMatrix(RLSMatrix M, RLSMatrix* T);
  *
  * Q = M + N。
  */
-Status AddSMatri(RLSMatrix M, RLSMatrix N, RLSMatrix* Q);
+Status AddSMatrix(RLSMatrix M, RLSMatrix N, RLSMatrix* Q);
 
 /*
  * 矩阵减法
diff --git a/CLion/CourseBook/0504_CrossList/CrossList-main.c b/CLion/CourseBook/0504_CrossList/CrossList-main.c
index 0d1dbf3..7b19bc9 100644
--- a/CLion/CourseBook/0504_CrossList/CrossList-main.c
+++ b/CLion/CourseBook/0504_CrossList/CrossList-main.c
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         CrossList Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("█ Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/CLion/CourseBook/0504_CrossList/CrossList.c b/CLion/CourseBook/0504_CrossList/CrossList.c
index 0190716..2a29342 100644
--- a/CLion/CourseBook/0504_CrossList/CrossList.c
+++ b/CLion/CourseBook/0504_CrossList/CrossList.c
@@ -269,7 +269,7 @@ Status CopySMatrix(CrossList M, CrossList* T) {
  *
  * Q = M + N。
  */
-Status AddSMatri(CrossList M, CrossList N, CrossList* Q) {
+Status AddSMatrix(CrossList M, CrossList N, CrossList* Q) {
     int i;
     OLNode* pm, * pn, * p, * r, * l;
     
diff --git a/CLion/CourseBook/0504_CrossList/CrossList.h b/CLion/CourseBook/0504_CrossList/CrossList.h
index 63b60f3..deb950e 100644
--- a/CLion/CourseBook/0504_CrossList/CrossList.h
+++ b/CLion/CourseBook/0504_CrossList/CrossList.h
@@ -65,7 +65,7 @@ Status CopySMatrix(CrossList M, CrossList* T);
  *
  * Q = M + N。
  */
-Status AddSMatri(CrossList M, CrossList N, CrossList* Q);
+Status AddSMatrix(CrossList M, CrossList N, CrossList* Q);
 
 /*
  * 矩阵减法
diff --git a/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix-main.cpp b/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix-main.cpp
index 83663c5..855523a 100644
--- a/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix-main.cpp
+++ b/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix-main.cpp
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         TSMatrix Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("�� Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix.cpp b/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix.cpp
index 516ade3..05eeaad 100644
--- a/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix.cpp
+++ b/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix.cpp
@@ -89,7 +89,7 @@ Status CopySMatrix(TSMatrix M, TSMatrix* T) {
  *
  * Q = M + N��
  */
-Status AddSMatri(TSMatrix M, TSMatrix N, TSMatrix* Q) {
+Status AddSMatrix(TSMatrix M, TSMatrix N, TSMatrix* Q) {
     int m, n, k;
     
     if(M.mu != N.mu || M.nu != N.nu) {
diff --git a/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix.h b/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix.h
index 5e410ae..debd90e 100644
--- a/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix.h
+++ b/Dev-C++/CourseBook/0502_TSMatrix/TSMatrix.h
@@ -66,7 +66,7 @@ Status CopySMatrix(TSMatrix M, TSMatrix* T);
  *
  * Q = M + N��
  */
-Status AddSMatri(TSMatrix M, TSMatrix N, TSMatrix* Q);
+Status AddSMatrix(TSMatrix M, TSMatrix N, TSMatrix* Q);
 
 /*
  * �������
diff --git a/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix-main.cpp b/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix-main.cpp
index 13e1e67..190054a 100644
--- a/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix-main.cpp
+++ b/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix-main.cpp
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         RLSMatrix Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("�� Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix.cpp b/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix.cpp
index 6e521fb..5d28a0e 100644
--- a/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix.cpp
+++ b/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix.cpp
@@ -98,7 +98,7 @@ Status CopySMatrix(RLSMatrix M, RLSMatrix* T) {
  *
  * Q = M + N��
  */
-Status AddSMatri(RLSMatrix M, RLSMatrix N, RLSMatrix* Q) {
+Status AddSMatrix(RLSMatrix M, RLSMatrix N, RLSMatrix* Q) {
     int m, n, k;
     
     if(M.mu != N.mu || M.nu != N.nu) {
diff --git a/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix.h b/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix.h
index 68d1c38..0550c13 100644
--- a/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix.h
+++ b/Dev-C++/CourseBook/0503_RLSMatrix/RLSMatrix.h
@@ -68,7 +68,7 @@ Status CopySMatrix(RLSMatrix M, RLSMatrix* T);
  *
  * Q = M + N��
  */
-Status AddSMatri(RLSMatrix M, RLSMatrix N, RLSMatrix* Q);
+Status AddSMatrix(RLSMatrix M, RLSMatrix N, RLSMatrix* Q);
 
 /*
  * �������
diff --git a/Dev-C++/CourseBook/0504_CrossList/CrossList-main.cpp b/Dev-C++/CourseBook/0504_CrossList/CrossList-main.cpp
index 3725524..27a899a 100644
--- a/Dev-C++/CourseBook/0504_CrossList/CrossList-main.cpp
+++ b/Dev-C++/CourseBook/0504_CrossList/CrossList-main.cpp
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         CrossList Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("�� Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/Dev-C++/CourseBook/0504_CrossList/CrossList.cpp b/Dev-C++/CourseBook/0504_CrossList/CrossList.cpp
index de89481..07eb63d 100644
--- a/Dev-C++/CourseBook/0504_CrossList/CrossList.cpp
+++ b/Dev-C++/CourseBook/0504_CrossList/CrossList.cpp
@@ -269,7 +269,7 @@ Status CopySMatrix(CrossList M, CrossList* T) {
  *
  * Q = M + N��
  */
-Status AddSMatri(CrossList M, CrossList N, CrossList* Q) {
+Status AddSMatrix(CrossList M, CrossList N, CrossList* Q) {
     int i;
     OLNode* pm, * pn, * p, * r, * l;
     
diff --git a/Dev-C++/CourseBook/0504_CrossList/CrossList.h b/Dev-C++/CourseBook/0504_CrossList/CrossList.h
index ecd088e..c774280 100644
--- a/Dev-C++/CourseBook/0504_CrossList/CrossList.h
+++ b/Dev-C++/CourseBook/0504_CrossList/CrossList.h
@@ -65,7 +65,7 @@ Status CopySMatrix(CrossList M, CrossList* T);
  *
  * Q = M + N��
  */
-Status AddSMatri(CrossList M, CrossList N, CrossList* Q);
+Status AddSMatrix(CrossList M, CrossList N, CrossList* Q);
 
 /*
  * �������
diff --git a/VisualC++/CourseBook/0502_TSMatrix/TSMatrix-main.c b/VisualC++/CourseBook/0502_TSMatrix/TSMatrix-main.c
index 83663c5..855523a 100644
--- a/VisualC++/CourseBook/0502_TSMatrix/TSMatrix-main.c
+++ b/VisualC++/CourseBook/0502_TSMatrix/TSMatrix-main.c
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         TSMatrix Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("�� Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/VisualC++/CourseBook/0502_TSMatrix/TSMatrix.c b/VisualC++/CourseBook/0502_TSMatrix/TSMatrix.c
index 516ade3..05eeaad 100644
--- a/VisualC++/CourseBook/0502_TSMatrix/TSMatrix.c
+++ b/VisualC++/CourseBook/0502_TSMatrix/TSMatrix.c
@@ -89,7 +89,7 @@ Status CopySMatrix(TSMatrix M, TSMatrix* T) {
  *
  * Q = M + N��
  */
-Status AddSMatri(TSMatrix M, TSMatrix N, TSMatrix* Q) {
+Status AddSMatrix(TSMatrix M, TSMatrix N, TSMatrix* Q) {
     int m, n, k;
     
     if(M.mu != N.mu || M.nu != N.nu) {
diff --git a/VisualC++/CourseBook/0502_TSMatrix/TSMatrix.h b/VisualC++/CourseBook/0502_TSMatrix/TSMatrix.h
index 5e410ae..debd90e 100644
--- a/VisualC++/CourseBook/0502_TSMatrix/TSMatrix.h
+++ b/VisualC++/CourseBook/0502_TSMatrix/TSMatrix.h
@@ -66,7 +66,7 @@ Status CopySMatrix(TSMatrix M, TSMatrix* T);
  *
  * Q = M + N��
  */
-Status AddSMatri(TSMatrix M, TSMatrix N, TSMatrix* Q);
+Status AddSMatrix(TSMatrix M, TSMatrix N, TSMatrix* Q);
 
 /*
  * �������
diff --git a/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix-main.c b/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix-main.c
index 13e1e67..190054a 100644
--- a/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix-main.c
+++ b/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix-main.c
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         RLSMatrix Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("�� Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix.c b/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix.c
index 6e521fb..5d28a0e 100644
--- a/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix.c
+++ b/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix.c
@@ -98,7 +98,7 @@ Status CopySMatrix(RLSMatrix M, RLSMatrix* T) {
  *
  * Q = M + N��
  */
-Status AddSMatri(RLSMatrix M, RLSMatrix N, RLSMatrix* Q) {
+Status AddSMatrix(RLSMatrix M, RLSMatrix N, RLSMatrix* Q) {
     int m, n, k;
     
     if(M.mu != N.mu || M.nu != N.nu) {
diff --git a/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix.h b/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix.h
index 68d1c38..0550c13 100644
--- a/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix.h
+++ b/VisualC++/CourseBook/0503_RLSMatrix/RLSMatrix.h
@@ -68,7 +68,7 @@ Status CopySMatrix(RLSMatrix M, RLSMatrix* T);
  *
  * Q = M + N��
  */
-Status AddSMatri(RLSMatrix M, RLSMatrix N, RLSMatrix* Q);
+Status AddSMatrix(RLSMatrix M, RLSMatrix N, RLSMatrix* Q);
 
 /*
  * �������
diff --git a/VisualC++/CourseBook/0504_CrossList/CrossList-main.c b/VisualC++/CourseBook/0504_CrossList/CrossList-main.c
index 3725524..27a899a 100644
--- a/VisualC++/CourseBook/0504_CrossList/CrossList-main.c
+++ b/VisualC++/CourseBook/0504_CrossList/CrossList-main.c
@@ -41,7 +41,7 @@ int main(int argc, char** argv) {
     {
         CrossList Q1;
         
-        AddSMatri(M, N, &Q1);
+        AddSMatrix(M, N, &Q1);
         
         printf("�� Q1 = M + N = \n");
         PrintSMatrix(Q1);
diff --git a/VisualC++/CourseBook/0504_CrossList/CrossList.c b/VisualC++/CourseBook/0504_CrossList/CrossList.c
index de89481..07eb63d 100644
--- a/VisualC++/CourseBook/0504_CrossList/CrossList.c
+++ b/VisualC++/CourseBook/0504_CrossList/CrossList.c
@@ -269,7 +269,7 @@ Status CopySMatrix(CrossList M, CrossList* T) {
  *
  * Q = M + N��
  */
-Status AddSMatri(CrossList M, CrossList N, CrossList* Q) {
+Status AddSMatrix(CrossList M, CrossList N, CrossList* Q) {
     int i;
     OLNode* pm, * pn, * p, * r, * l;
     
diff --git a/VisualC++/CourseBook/0504_CrossList/CrossList.h b/VisualC++/CourseBook/0504_CrossList/CrossList.h
index ecd088e..c774280 100644
--- a/VisualC++/CourseBook/0504_CrossList/CrossList.h
+++ b/VisualC++/CourseBook/0504_CrossList/CrossList.h
@@ -65,7 +65,7 @@ Status CopySMatrix(CrossList M, CrossList* T);
  *
  * Q = M + N��
  */
-Status AddSMatri(CrossList M, CrossList N, CrossList* Q);
+Status AddSMatrix(CrossList M, CrossList N, CrossList* Q);
 
 /*
  * �������
diff --git a/VisualC++/CourseBook/CourseBook.sdf b/VisualC++/CourseBook/CourseBook.sdf
index d8defa8..b8bbde0 100644
Binary files a/VisualC++/CourseBook/CourseBook.sdf and b/VisualC++/CourseBook/CourseBook.sdf differ
diff --git a/VisualC++/CourseBook/CourseBook.suo b/VisualC++/CourseBook/CourseBook.suo
index e214ad1..2df8c59 100644
Binary files a/VisualC++/CourseBook/CourseBook.suo and b/VisualC++/CourseBook/CourseBook.suo differ