[3.13] gh-137871: Clarify cmath.nan documentation by linking to math module (GH-13787...

Co-authored-by: Aziz <azizbenothman76@gmail.com>
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>

diff --git a/Doc/library/cmath.rst b/Doc/library/cmath.rst
index 4090e19762a8f5b6047009ca1252ec28548b2a4c..0f0b823cf36847ef6f28bdc7bfbe09df1e517620 100644 (file)
--- a/Doc/library/cmath.rst
+++ b/Doc/library/cmath.rst
@@ -338,7 +338,7 @@ Constants
 .. data:: nan
 
    A floating-point "not a number" (NaN) value.  Equivalent to
-   ``float('nan')``.
+   ``float('nan')``. See also :data:`math.nan`.
 
    .. versionadded:: 3.6