An example with 3x3 matrix

matrix.cpp

@@ -3,17 +3,25 @@
 #include "../vectors/vector.hpp"
 
 int main() {
-  vector v = vector(2);
-  v[0] = cnumber(1, 0);
-  v[1] = cnumber(0, 1);
+  vector a = vector(3);
+  a[0] = cnumber(1, 0);
+  a[1] = cnumber(0, 0);
+  a[2] = cnumber(0, 0);
 
-  vector w = vector(2);
-  w[0] = cnumber(1, 0);
-  w[1] = cnumber(0, -1);
+  vector b = vector(3);
+  b[0] = cnumber(0, 0);
+  b[1] = cnumber(1, 0);
+  b[2] = cnumber(0, 0);
 
-  matrix m = matrix(2, 2);
-  m[0] = v;
-  m[1] = w;
+  vector c = vector(3);
+  c[0] = cnumber(0, 0);
+  c[1] = cnumber(0, 0);
+  c[2] = cnumber(0, -1);
+
+  matrix m = matrix(3, 3);
+  m[0] = a;
+  m[1] = b;
+  m[2] = c;
 
   cout << m << endl;
   return 0;