Интерактивная система просмотра системных руководств (man-ов)
tanh (3)
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NAME
tanh, tanhf, tanhl - hyperbolic tangent function
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <math.h>
double tanh(double x);
float tanhf(float x);
long double tanhl(long double x);
DESCRIPTION
These functions compute the hyperbolic tangent of their argument x.
RETURN VALUES
Upon successful completion, these functions return the hyperbolic tangent of x.
If x is NaN, a NaN is returned.
If x is ±0, x is returned.
If x is ±Inf, ±1 is returned.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE
|
|
| Interface Stability | Standard
|
|
| MT-Level |
|
SEE ALSO
atanh(3M), isnan(3M), math.h(3HEAD), tan(3M), attributes(5), standards(5)
Index
- NAME
-
- SYNOPSIS
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- DESCRIPTION
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- RETURN VALUES
-
- ERRORS
-
- ATTRIBUTES
-
- SEE ALSO
-