SINH(3) | Library Functions Manual | SINH(3)

# NAME

`sinh`, `sinhf`, `sinhl` — hyperbolic sine functions

# SYNOPSIS

Math Library (libm, -lm)
`#include <math.h>`

double
`sinh`(double x);

float
`sinhf`(float x);

long double
`sinhl`(long double x);

# DESCRIPTION

The `sinh`() function computes the hyperbolic sine of x. The `sinhf`() function is a single precision version of `sinh`(). The `sinhl`() function is an extended precision version of `sinh`().

# RETURN VALUES

The `sinh`(), `sinhf`() and `sinhl`() functions return the hyperbolic sine value unless the magnitude of x is too large; in this event, the global variable errno is set to `ERANGE`.

# SEE ALSO

acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), tan(3), tanh(3)

# STANDARDS

The `sinh`() function conforms to ANSI X3.159-1989 (“ANSI C89”).

# HISTORY

The `sinh`() function first appeared in Version 7 AT&T UNIX.

June 7, 2025 | Debian