other indentation\?

hypertiling/transformation.py

@@ -2,21 +2,22 @@ import math
 from numpy import array as nparray
 
 def ddkahan(x, y):
-    '''Transform the addition of two floating point numbers:
+    """
+    Transform the addition of two floating point numbers:
     .. math::
         x + y = r + e
         
         
-        (Dekker1971) showed that this transform is exact, if abs(x) > abs(y).
+    (Dekker1971) showed that this transform is exact, if abs(x) > abs(y).
         
-        Parameters:
-            x (float): a floating point number.
-            y (float): a floating point number with abs(y) < abs(x).
+    Parameters:
+        x (float): a floating point number.
+        y (float): a floating point number with abs(y) < abs(x).
         
-        Returns:
-            r (float): x + y
-            e (float): the overflow
-    '''
+    Returns:
+        r (float): x + y
+        e (float): the overflow
+    """
     r = x + y
     e = y - (r - x)
     return r, e