asin, asinf
div
eof
TOC
Collapse the table of content
Expand the table of content
The document is archived and information here might be outdated

asin, asinf

Calculate the arcsine.

double asin( 
   double x 
);
float asin(
   float x
);  // C++ only
long double asin(
   long double x
);  // C++ only
float asinf ( 
   float x 
);

x

Value whose arcsine is to be calculated.

The asin function returns the arcsine of x in the range –π/2 to π/2 radians.

If x is less than –1 or greater than 1, asin returns an indefinite by default.

Input

SEH Exception

Matherr Exception

± ∞

INVALID

_DOMAIN

± QNAN,IND

none

_DOMAIN

|x|>1

INVALID

_DOMAIN

C++ allows overloading, so you can call overloads of asin. In a C program, asin always takes and returns a double.

Routine

Required header

asin, asinf

<math.h>

For more information, see acos, acosf.

Show:
© 2016 Microsoft