[PATCH] manual: Cube roots are rarely representable

Alejandro Colomar alx@kernel.org
Tue Mar 5 01:10:17 GMT 2024


Reported-by: Morten Welinder <mwelinder@gmail.com>
Cowritten-by: Morten Welinder <mwelinder@gmail.com>
Cc: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---

Hi Adhemerval,

I've used semantic newlines, but maybe you prefer not.  Just let me
know.

Have a lovely night!
Alex

 manual/math.texi | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/manual/math.texi b/manual/math.texi
index bf4027c4ee..bc65400bc8 100644
--- a/manual/math.texi
+++ b/manual/math.texi
@@ -697,8 +697,12 @@ Mathematically, it should return a complex number.
 @standardsx{cbrtfN, TS 18661-3:2015, math.h}
 @standardsx{cbrtfNx, TS 18661-3:2015, math.h}
 @safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}}
-These functions return the cube root of @var{x}.  They cannot
-fail; every representable real value has a representable real cube root.
+These functions return the cube root of @var{x}.
+They cannot fail;
+every representable real value
+has a real cube root,
+and rounding it to a representable value
+never causes overflow nor underflow.
 @end deftypefun
 
 @deftypefun double hypot (double @var{x}, double @var{y})
-- 
2.43.0

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