Create arr2DCal.cc

SampleCodes/Array/arr2DCal.cc

@@ -0,0 +1,84 @@
+```cpp
+#include <iostream>
+
+using namespace std;
+
+double A[3][3] = { {0, 1, 2},
+                    {1, 2, 3},
+                    {9, 8, 7} };
+double B[3][3] = { {1, 2, 3},
+                {3, 2, 1},
+                {5, 5, 5} };
+double C[3][3] = { 0 };
+
+void 덧셈()
+{
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            C[i][j] = A[i][j] + B[i][j];
+        }
+    }
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            cout << C[i][j] << " ";
+        }
+        cout << endl;
+    }
+}
+
+void 뺄셈()
+{
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            C[i][j] = A[i][j] - B[i][j];
+        }
+    }
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            cout << C[i][j] << " ";
+        }
+        cout << endl;
+    }
+}
+
+void 곱셈()
+{
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            C[i][j] += A[i][j] * B[i][j];
+        }
+    }
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            cout << C[i][j] << " ";
+        }
+        cout << endl;
+    }
+}
+
+void 나눗셈()
+{
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            C[i][j] = A[i][j] / B[i][j];
+        }
+    }
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            cout << C[i][j] << " ";
+        }
+        cout << endl;
+    }
+}
+
+int main(int argc, char* argv[]) {
+
+    덧셈();
+    뺄셈();
+    곱셈();
+    나눗셈();
+
+    return 0;
+}
+
+```