diff --git a/.ruff.toml b/.ruff.toml
index 4ab139bcafa..9474f406d95 100644
--- a/.ruff.toml
+++ b/.ruff.toml
@@ -394,7 +394,6 @@ preview = true
 quote-style = "single"
 exclude = [
     "sphinx/builders/latex/constants.py",
-    "sphinx/domains/math.py",
     "sphinx/domains/python/_annotations.py",
     "sphinx/domains/python/__init__.py",
     "sphinx/domains/python/_object.py",
diff --git a/sphinx/domains/math.py b/sphinx/domains/math.py
index e59776d7a07..d334d91b536 100644
--- a/sphinx/domains/math.py
+++ b/sphinx/domains/math.py
@@ -27,8 +27,13 @@
 
 
 class MathReferenceRole(XRefRole):
-    def result_nodes(self, document: nodes.document, env: BuildEnvironment, node: Element,
-                     is_ref: bool) -> tuple[list[Node], list[system_message]]:
+    def result_nodes(
+        self,
+        document: nodes.document,
+        env: BuildEnvironment,
+        node: Element,
+        is_ref: bool,
+    ) -> tuple[list[Node], list[system_message]]:
         node['refdomain'] = 'math'
         return [node], []
 
@@ -60,8 +65,12 @@ def equations(self) -> dict[str, tuple[str, int]]:
     def note_equation(self, docname: str, labelid: str, location: Any = None) -> None:
         if labelid in self.equations:
             other = self.equations[labelid][0]
-            logger.warning(__('duplicate label of equation %s, other instance in %s'),
-                           labelid, other, location=location)
+            logger.warning(
+                __('duplicate label of equation %s, other instance in %s'),
+                labelid,
+                other,
+                location=location,
+            )
 
         self.equations[labelid] = (docname, self.env.new_serialno('eqno') + 1)
 
@@ -71,8 +80,9 @@ def get_equation_number_for(self, labelid: str) -> int | None:
         else:
             return None
 
-    def process_doc(self, env: BuildEnvironment, docname: str,
-                    document: nodes.document) -> None:
+    def process_doc(
+        self, env: BuildEnvironment, docname: str, document: nodes.document
+    ) -> None:
         def math_node(node: Node) -> bool:
             return isinstance(node, nodes.math | nodes.math_block)
 
@@ -93,9 +103,16 @@ def merge_domaindata(self, docnames: Set[str], otherdata: dict[str, Any]) -> Non
         for docname in docnames:
             self.data['has_equations'][docname] = otherdata['has_equations'][docname]
 
-    def resolve_xref(self, env: BuildEnvironment, fromdocname: str, builder: Builder,
-                     typ: str, target: str, node: pending_xref, contnode: Element,
-                     ) -> nodes.reference | None:
+    def resolve_xref(
+        self,
+        env: BuildEnvironment,
+        fromdocname: str,
+        builder: Builder,
+        typ: str,
+        target: str,
+        node: pending_xref,
+        contnode: Element,
+    ) -> nodes.reference | None:
         assert typ in {'eq', 'numref'}
         result = self.equations.get(target)
         if result:
@@ -104,7 +121,8 @@ def resolve_xref(self, env: BuildEnvironment, fromdocname: str, builder: Builder
             node_id = make_id('equation-%s' % target)
             if env.config.math_numfig and env.config.numfig:
                 if docname in env.toc_fignumbers:
-                    numbers = env.toc_fignumbers[docname]['displaymath'].get(node_id, ())
+                    toc_dm = env.toc_fignumbers[docname]['displaymath']
+                    numbers = toc_dm.get(node_id, ())
                     eqno = '.'.join(map(str, numbers))
                     eqno = env.config.math_numsep.join(eqno.rsplit('.', 1))
                 else:
@@ -113,21 +131,27 @@ def resolve_xref(self, env: BuildEnvironment, fromdocname: str, builder: Builder
                 eqno = str(number)
 
             try:
-                eqref_format = env.config.math_eqref_format or "({number})"
+                eqref_format = env.config.math_eqref_format or '({number})'
                 title = nodes.Text(eqref_format.format(number=eqno))
             except KeyError as exc:
-                logger.warning(__('Invalid math_eqref_format: %r'), exc,
-                               location=node)
-                title = nodes.Text("(%d)" % number)
-                title = nodes.Text("(%d)" % number)
+                logger.warning(__('Invalid math_eqref_format: %r'), exc, location=node)
+                title = nodes.Text('(%d)' % number)
             return make_refnode(builder, fromdocname, docname, node_id, title)
         else:
             return None
 
-    def resolve_any_xref(self, env: BuildEnvironment, fromdocname: str, builder: Builder,
-                         target: str, node: pending_xref, contnode: Element,
-                         ) -> list[tuple[str, nodes.reference]]:
-        refnode = self.resolve_xref(env, fromdocname, builder, 'eq', target, node, contnode)
+    def resolve_any_xref(
+        self,
+        env: BuildEnvironment,
+        fromdocname: str,
+        builder: Builder,
+        target: str,
+        node: pending_xref,
+        contnode: Element,
+    ) -> list[tuple[str, nodes.reference]]:
+        refnode = self.resolve_xref(
+            env, fromdocname, builder, 'eq', target, node, contnode
+        )
         if refnode is None:
             return []
         else:
@@ -143,7 +167,7 @@ def has_equations(self, docname: str | None = None) -> bool:
         return (
             self.data['has_equations'].get(docname, False)
             or any(map(self.has_equations, self.env.toctree_includes.get(docname, ())))
-        )
+        )  # fmt: skip
 
 
 def setup(app: Sphinx) -> ExtensionMetadata: