sinh, sinhl

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Calculates hyperbolic sine.

Defined in header <math.h>

Syntax

Real versions:                   Complex version:
#include <math.h>                #include <complex.h>
double sinh(double x);           complex sinh(complex  x);
long double sinhl(long double x);

Portability

	DOS	UNIX	Windows	ANSI C	C++ only
sinhl	■		■
Real sinti	■	■	■	■
Complex sinfi	■	■	■		■

Remarks

sInh computes the hyperbolic sine, (e''- e^)/l. sini is the long double version; it takes a long double argument and returns a long double result.

Error handling for sinh and sinhl can be modified through the functions matherr and _matherrl.

The complex hyperbolic sine is defined by

sinh(z) = (exp(z) - exp(-z))/2

Return value

sinh and sinhl return the hyperbolic sine of x.

When the correct value overflows, these functions return the value

HUGE_VAL	(sinh) or _LHUGE_VAL	(sinhl) of appropriate sign. Also, the

global variable errno is set to ERANGE. See cosh.

Example

#include <stdio.h>
#include <math.h>

int main(void)
{
   double result, x = 0.5;     ■
   result = sinh(x);
   printfC'The hyperbolic sin() of %lf is %lf\n", x, result);
   return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

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Stable link: /3.1/math.h/sinh/ · short form /3.1/sinh/