diff --git a/vector3.py b/src/vector3.py
copy from vector3.py
copy to src/vector3.py
--- a/vector3.py
+++ b/src/vector3.py
@@ -67,14 +67,21 @@ class Vector3:
     return Vector3(self.y*v.z-self.z*v.y, self.z*v.x-self.x*v.z, self.x*v.y-self.y*v.x)
     
   def __ixor__(self,v):
-    self.x=self.y*v.z-self.z*v.y
-    self.y=self.z*v.x-self.x*v.z
-    self.z=self.x*v.y-self.y*v.x
+    (self.x, self.y, self.z)=(self.y*v.z-self.z*v.y, self.z*v.x-self.x*v.z, self.x*v.y-self.y*v.x)
     return self
     
   def __abs__(self):
     return math.sqrt(self.x*self.x + self.y*self.y + self.z*self.z)
     
+  ## Multiplicates the vector as to set the first nonzero coordinate to 1.
+  def canonize(self):
+    if self.x!=0: factor=self.x
+    elif self.y!=0: factor=self.y
+    elif self.z!=0: factor=self.z
+    else: factor=1
+    self/=factor
+    return self
+    
   def __str__(self):
     return str((self.x,self.y,self.z))