Now ignoring main.cpp to keep it clean

.gitignore

@@ -1,2 +1,3 @@
 build/*
-.vscode/*
+.vscode/*
+main.cpp

main.cpp

@@ -2,11 +2,12 @@
 
 int main() {
     Matrix a(3, 3);
-    Matrix b(3, 1); // Let's multiply by a vector
 
-    Matrix result = a * &b;
+    a.Print("A");
 
-    result.Print("A x B"); // Result is a 3 by 1 vector
+    a = a.Add(0.5F);
+
+    a.Print("A + 0.5F");
 
     return 0;
 }

matrices.h

@@ -16,7 +16,7 @@ class Matrix{
 
         inline Matrix Swap(const Matrix*);
 
-        inline void Multiply(float); // TODO : Make this return a Matrix
+        inline Matrix Multiply(float);
         inline Matrix Multiply(const Matrix*);
 
         inline void Hadamard(const Matrix*);
@@ -180,12 +180,14 @@ Matrix Matrix::Substract(float value){
 }
 
 // Multiply every matrix case by a given factor
-void Matrix::Multiply(float value){
-    for(int m = 0; m < this->values.size(); m++){
-        for(int n = 0; n < this->values[m].size(); n++){
-            this->values[m][n] *= value;
+Matrix Matrix::Multiply(float value){
+    Matrix result = this;
+    for(int m = 0; m < result.values.size(); m++){
+        for(int n = 0; n < result.values[m].size(); n++){
+            result.values[m][n] *= value;
         }
     }
+    return result;
 }
 
 // Set a matrix to a given value