added forgotten overload vector sub and mult

UGameEngine/utils/vectorxd.h

     VectorXD<X>& sub(const VectorXD<X>& other);
 
     VectorXD<X>& mult(double k);
+    VectorXD<X>& mult(double scalars[X]);
     VectorXD<X>& mult(const VectorXD<X>& k);
 
     VectorXD<X>& div(double k);
+    VectorXD<X>& div(double scalars[X]);
+    VectorXD<X>& div(const VectorXD<X>& k);
+
 
     double dotProduct(const VectorXD<X>& other) const;
 

UGameEngine/utils/vectorxd.hxx

     return *this;
 }
 
+tmpl VectorXD<X> &VectorXD<X>::mult(double scalars[X])
+{
+    return mult(VectorXD<X>(scalars));
+}
+
 tmpl VectorXD<X> &VectorXD<X>::mult(const VectorXD<X> &other)
 {
     for (unsigned i = 0; i < X; ++i) {
 }
 
 tmpl VectorXD<X> &VectorXD<X>::div(double k)
+{
+    double scalars[X];
+    for (unsigned i = 0; i < X; ++i) {
+        scalars[i] = k;
+    }
+    return div(VectorXD<X>(scalars));
+}
+
+tmpl VectorXD<X> &VectorXD<X>::div(double scalars[X])
+{
+    return div(VectorXD<X>(scalars));
+}
+
+tmpl VectorXD<X> &VectorXD<X>::div(const VectorXD<X> &other)
 {
     for (unsigned i = 0; i < X; ++i) {
-        _scalars[i] /= k;
+        _scalars[i] /= other._scalars[i];
     }
     return *this;
 }