diff --git a/src/epoint.py b/src/epoint.py
--- a/src/epoint.py
+++ b/src/epoint.py
@@ -3,67 +3,67 @@
 
 ## Euclidean 2D plane point: (x,y).
 class EPoint:
-  def __init__(self,x,y):
-    self.x=x
-    self.y=y
-    
-  def fromTuple(tup): return EPoint(tup[0],tup[1])
-  
-  def fromProjective(point):
-    if point.item(0)==0: return None
-    return EPoint(point.item(1)/point.item(0),point.item(2)/point.item(0))
-    
-  def toProjective(self):
-    return (1,self.x,self.y)
-  
-  def dist(self,a):
-    return math.sqrt((self.x-a.x)**2+(self.y-a.y)**2)
-    
-  def __add__(self,a):
-    return EPoint(self.x+a.x,self.y+a.y)
-    
-  def __sub__(self,a):
-    return EPoint(self.x-a.x,self.y-a.y)
-    
-  def __mul__(self,k):
-    return EPoint(self.x*k,self.y*k)
-    
-  def __rmul__(self,k):
-    return self*k
-    
-  def __truediv__(self,k):
-    return EPoint(self.x/k,self.y/k)
-    
-  def __floordiv__(self,k):
-    return EPoint(self.x//k,self.y//k)
-    
-  def __iadd__(self,a):
-    self.x+=a.x
-    self.y+=a.y
-    return self
-    
-  def __isub__(self,a):
-    self.x-=a.x
-    self.y-=a.y
-    return self
-  
-  def __imul__(self,k):
-    self.x*=k
-    self.y*=k
-    return self
-    
-  def __itruediv__(self,k):
-    self.x/=k
-    self.y/=k
-    return self
-    
-  def __ifloordiv__(self,k):
-    self.x//=k
-    self.y//=k
-    return self
-    
-  def __neg__(self):
-    return EPoint(-self.x,-self.y)
-    
-  def __str__(self): return "({0},{1})".format(round(self.x,3),round(self.y,3))
-  def __repr__(self): return "EPoint({0},{1})".format(round(self.x,3),round(self.y,3))
+	def __init__(self,x,y):
+		self.x=x
+		self.y=y
+
+	def fromTuple(tup): return EPoint(tup[0],tup[1])
+
+	def fromProjective(point):
+		if point.item(0)==0: return None
+		return EPoint(point.item(1)/point.item(0),point.item(2)/point.item(0))
+
+	def toProjective(self):
+		return (1,self.x,self.y)
+
+	def dist(self,a):
+		return math.sqrt((self.x-a.x)**2+(self.y-a.y)**2)
+
+	def __add__(self,a):
+		return EPoint(self.x+a.x,self.y+a.y)
+
+	def __sub__(self,a):
+		return EPoint(self.x-a.x,self.y-a.y)
+
+	def __mul__(self,k):
+		return EPoint(self.x*k,self.y*k)
+
+	def __rmul__(self,k):
+		return self*k
+
+	def __truediv__(self,k):
+		return EPoint(self.x/k,self.y/k)
+
+	def __floordiv__(self,k):
+		return EPoint(self.x//k,self.y//k)
+
+	def __iadd__(self,a):
+		self.x+=a.x
+		self.y+=a.y
+		return self
+
+	def __isub__(self,a):
+		self.x-=a.x
+		self.y-=a.y
+		return self
+
+	def __imul__(self,k):
+		self.x*=k
+		self.y*=k
+		return self
+
+	def __itruediv__(self,k):
+		self.x/=k
+		self.y/=k
+		return self
+
+	def __ifloordiv__(self,k):
+		self.x//=k
+		self.y//=k
+		return self
+
+	def __neg__(self):
+		return EPoint(-self.x,-self.y)
+
+	def __str__(self): return "({0},{1})".format(round(self.x,3),round(self.y,3))
+	def __repr__(self): return "EPoint({0},{1})".format(round(self.x,3),round(self.y,3))