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| -rw-r--r-- | Doc/library/cmath.rst | 13 | ||||
| -rw-r--r-- | Doc/library/math.rst | 8 |
2 files changed, 13 insertions, 8 deletions
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 @@ Classification functions .. 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 @@ Number-theoretic and representation functions 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) |