Include versionadded in (c)math.isfinite docs (thanks Ezio Melotti). Other minor doc cleanups.
diff --git a/Doc/library/cmath.rst b/Doc/library/cmath.rst
index ae94039..d7778df 100644
--- a/Doc/library/cmath.rst
+++ b/Doc/library/cmath.rst
@@ -189,19 +189,22 @@
.. function:: isfinite(x)
- Return ``True`` if both the real and imaginary parts of *x* are finite,
- and ``False`` otherwise.
+ Return ``True`` if both the real and imaginary parts of *x* are finite, and
+ ``False`` otherwise.
+
+ .. versionadded:: 3.2
.. function:: isinf(x)
- Return *True* if the real or the imaginary part of x is positive
- or negative infinity.
+ Return ``True`` if either the real or the imaginary part of *x* is an
+ infinity, and ``False`` otherwise.
.. function:: isnan(x)
- Return *True* if the real or imaginary part of x is not a number (NaN).
+ Return ``True`` if either the real or the imaginary part of *x* is a NaN,
+ and ``False`` otherwise.
Constants
diff --git a/Doc/library/math.rst b/Doc/library/math.rst
index 22f6f5f..ec3955d 100644
--- a/Doc/library/math.rst
+++ b/Doc/library/math.rst
@@ -102,16 +102,18 @@
Return ``True`` if *x* is neither an infinity nor a NaN, and
``False`` otherwise. (Note that ``0.0`` *is* considered finite.)
+ .. versionadded:: 3.2
+
.. function:: isinf(x)
- Check if the float *x* is positive or negative infinity.
+ Return ``True`` if *x* is a positive or negative infinity, and
+ ``False`` otherwise.
.. function:: isnan(x)
- Check if the float *x* is a NaN (not a number). For more information
- on NaNs, see the IEEE 754 standards.
+ Return ``True`` if *x* is a NaN (not a number), and ``False`` otherwise.
.. function:: ldexp(x, i)