matplotlib
diff --git a/‎lib/matplotlib/transforms.py
Copy file name to clipboardExpand all lines: lib/matplotlib/transforms.py
+3Lines changed: 3 additions & 0 deletions b/‎lib/matplotlib/transforms.py
Copy file name to clipboardExpand all lines: lib/matplotlib/transforms.py
+3Lines changed: 3 additions & 0 deletions
@@ -1266,6 +1266,9 @@ def __init_subclass__(cls):
     def __add__(self, other):
         """
         Compose two transforms together so that *self* is followed by *other*.
+
+        ``A + B`` returns a transform ``C`` so that
+        ``C.transform(x) == B.transform(A.transform(x))``.
         """
         return (composite_transform_factory(self, other)
                 if isinstance(other, Transform) else