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sin, sinf, sinh, sinhf

Calculate sines and hyperbolic sines.


double sin(
   double x 
);
float sin(
   float x
);  // C++ only
long double sin(
   long double x
);  // C++ only
float sinf(
   float x 
);
double sinh(
   double x 
);
float sinh(
   float x 
);  // C++ only
long double sinh(
   long double x
);  // C++ only
float sinhf(
   float x
);

Parameters

x

Angle in radians.

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

sinh returns the hyperbolic sine of x. If the result is too large, sinh sets errno to ERANGE and returns ±HUGE_VAL, by default.

Input SEH Exception Matherr Exception

± QNAN,IND

None

_DOMAIN

± ∞ (sin, sinf)

INVALID

_DOMAIN

|x| ≥ 7.104760e+002 (sinh, sinhf)

OVERFLOW+INEXACT

OVERFLOW

See _doserrno, errno, _sys_errlist, and _sys_nerr for more information on these, and other, return codes.

C++ allows overloading, so users can call overloads of sin and sinh that take double, float or long double types. In a C program, the sin and sinh functions always take and return double and float, respectively.

Routine Required header Compatibility

sin, sinf, sinh, sinhf

<math.h>

ANSI, Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003

For additional compatibility information, see Compatibility in the Introduction.

// crt_sincos.c
// This program displays the sine, hyperbolic
// sine, cosine, and hyperbolic cosine of pi / 2.
//

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

int 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

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