Merge branch 'external-operator_dualspace' of github.com:firedrakepro…

…ject/ufl into external-operator_dualspace
firedrakeproject · Sep 12, 2023 · 7e9f0ca · 7e9f0ca
2 parents d5ed49e + 16ca1c7
commit 7e9f0ca
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ufl/core/external_operator.py b/ufl/core/external_operator.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 """This module defines the ``ExternalOperator`` class, which symbolically represents operators that are not
-   straightforwardly expressible in UFL. A practical implementation is required at a later stage to define
+   straightforwardly expressible in UFL. Subclasses of ``ExternalOperator`` must define
    how this operator should be evaluated as well as its derivatives from a given set of operands.
 """