# sin, sinh

Visual Studio 6.0

Calculate sines and hyperbolic sines.

double sin( double x );

double sinh( double x );

 Routine Required Header Compatibility sin ANSI, Win 95, Win NT sinh ANSI, Win 95, Win NT

For additional compatibility information, see Compatibility in the Introduction.

Libraries

 LIBC.LIB Single thread static library, retail version LIBCMT.LIB Multithread static library, retail version MSVCRT.LIB Import library for MSVCRT.DLL, retail version

Return Value

sin returns the sine of x. If x is greater than or equal to 263, or less than or equal to –263, a loss of significance in the result occurs, in which case the function generates a _TLOSS error and returns an indefinite (same as a quiet NaN).

sinh returns the hyperbolic sine of x. If the result is too large, sinh sets errno to ERANGE and returns ±HUGE_VAL. You can modify error handling with _matherr.

Parameter

x

Example

``````/* SINCOS.C: This program displays the sine, hyperbolic
* sine, cosine, and hyperbolic cosine of pi / 2.
*/

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

void main( void )
{
double pi = 3.1415926535;
double x, y;

x = pi / 2;
y = sin( x );
printf( "sin( %f ) = %f\n", x, y );
y = sinh( x );
printf( "sinh( %f ) = %f\n",x, y );
y = cos( x );
printf( "cos( %f ) = %f\n", x, y );
y = cosh( x );
printf( "cosh( %f ) = %f\n",x, y );
}

``````

Output

``````sin( 1.570796 ) = 1.000000
sinh( 1.570796 ) = 2.301299
cos( 1.570796 ) = 0.000000
cosh( 1.570796 ) = 2.509178

``````