Hi Morten,
On Thu, Feb 29, 2024 at 07:28:10PM -0500, Morten Welinder wrote:
> I came across some minor issues in some math man pages.
>
> M.
I'll reply to the others separately.
[...]
> exp10:
> The man page probably should come with a warning not to use the
> function for the time being. The implementation is pretty bad. For
> example, results for integer arguments 3, 4, 7, 8, 9, and 17 are
> needlessly inaccurate.
I can't reproduce that.
alx@debian:~/tmp$ cat exp10.c
#define _GNU_SOURCE
#include <math.h>
#include <stdio.h>
int
main(void)
{
printf("exp10(17): %lf\n", exp10(17));
printf("pow(10, 17): %lf\n", pow(10, 17));
}
alx@debian:~/tmp$ gcc -Wall -Wextra exp10.c -lm
alx@debian:~/tmp$ ./a.out
exp10(17): 100000000000000000.000000
pow(10, 17): 100000000000000000.000000
I'm running libc6 2.37-15.
> pow(10,x) is much better, but not perfect.
Have a lovely night!
Alex
--
<https://www.alejandro-colomar.es/>
Looking for a remote C programming job at the moment.
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