diff -r 2b13f8a0c8ba -r 593912dc3293 src/direct_product.rs
--- a/src/direct_product.rs	Mon May 12 20:40:14 2025 -0500
+++ b/src/direct_product.rs	Mon May 12 23:29:17 2025 -0500
@@ -561,4 +561,8 @@
     B: HasDual<F>,
 {
     type DualSpace = Pair<A::DualSpace, B::DualSpace>;
+
+    fn dual_origin(&self) -> <Self::DualSpace as AXPY>::Owned {
+        Pair(self.0.dual_origin(), self.1.dual_origin())
+    }
 }