bpo-36908: 'This module is always available' isn't helpful. (#13297)
Makes the documentation of math and cmath module
more helpful for the beginners.
diff --git a/Doc/library/math.rst b/Doc/library/math.rst
index 7129525..49f932d 100644
--- a/Doc/library/math.rst
+++ b/Doc/library/math.rst
@@ -10,8 +10,8 @@
--------------
-This module is always available. It provides access to the mathematical
-functions defined by the C standard.
+This module provides access to the mathematical functions defined by the C
+standard.
These functions cannot be used with complex numbers; use the functions of the
same name from the :mod:`cmath` module if you require support for complex