Make it possible to print as row

vector.hpp

@@ -8,6 +8,7 @@ private:
   uint64_t dimention = 0;
   cnumber *entries = NULL;
   bool err = true;
+  bool row = false;
 
 public:
   bool is_error() { return this->err; }
@@ -44,6 +45,8 @@ public:
     }
     return cnumber(0, 0);
   }
+  void make_row() { this->row = true; }
+  void make_column() { this->row = false; }
   void set_entry(const uint64_t index, const cnumber z) {
     if (index < this->get_dimention()) {
       this->entries[index] = z;
@@ -60,6 +63,16 @@ public:
 
   friend std::ostream &operator<<(std::ostream &os, const vector &v) {
     int longest = 0;
+    if (v.row) {
+      os << '(';
+      for (uint64_t i = 0; i < v.get_dimention(); i++) {
+        os << v[i];
+        if (i != v.get_dimention() - 1)
+          os << ',';
+      }
+      os << ')';
+      return os;
+    }
     for (uint64_t i = 0; i < v.get_dimention(); i++) {
       std::ostringstream oss;
       oss << v[i];