Update doc/release/upcoming_changes/28343.change.rst

carlosgmartin · ngoldbaum · web-flow · commit a99d6727f640 · 2025-03-06T12:08:31.000-05:00
Co-authored-by: Nathan Goldbaum &lt;nathan.goldbaum@gmail.com&gt;
diff --git a/doc/release/upcoming_changes/28343.change.rst b/doc/release/upcoming_changes/28343.change.rst
@@ -1 +1 @@
-* Currently, ``np.linalg.norm``, ``np.linalg.vector_norm``, and ``np.linalg.matrix_norm`` raise errors for some zero-sized inputs. This change ensures that any proper norm of a zero-sized input is zero, which makes it consistent with the mathematical properties of a norm.
+* In all cases, ``np.linalg.norm``, ``np.linalg.vector_norm``, and ``np.linalg.matrix_norm`` now return zero for arrays with a shape of zero along at least one axis. Previously, NumPy would raises errors or return zero depending on the shape of the array.

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		-* Currently, ``np.linalg.norm``, ``np.linalg.vector_norm``, and ``np.linalg.matrix_norm`` raise errors for some zero-sized inputs. This change ensures that any proper norm of a zero-sized input is zero, which makes it consistent with the mathematical properties of a norm.
	`1`	+* In all cases, ``np.linalg.norm``, ``np.linalg.vector_norm``, and ``np.linalg.matrix_norm`` now return zero for arrays with a shape of zero along at least one axis. Previously, NumPy would raises errors or return zero depending on the shape of the array.