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Compute an inverse hyperbolic tangent
#include <math.h>
double atanh( double x );
float atanhf( float x );
- x
- The value for which you want to compute the inverse hyperbolic tangent.
libm
Use the -l m option to
qcc
to link against this library.
These functions compute the inverse hyperbolic tangent (specified in radians) of
x.
The inverse hyperbolic tangent of x.
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
int main( void )
{
printf( "%f\n", atanh( 0.5 ) );
return EXIT_SUCCESS;
}
produces the output:
0.549306
ANSI,
POSIX 1003.1
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
acosh(),
asinh(),
errno,
tanh()
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