ASIN
Section: C Library Functions (3)
Index
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BSD mandoc
NAME
asin
- arc sine function
SYNOPSIS
Fd #include <math.h>
Ft double
Fn asin double x
DESCRIPTION
The
Fn asin
function computes the principal value of the arc sine of
Fa x .
A domain error occurs for arguments not in the range [-1, +1].
For a discussion of error due to roundoff, see
math(3).
RETURN VALUES
The
Fn asin
function returns the arc sine in the range
-words
Bq -/2, +/2
radians.
On the
VAX
and Tahoe ,
if:
| x | > 1
the
global variable
errno
is set to
Er EDOM
and
a reserved operand fault generated.
SEE ALSO
acos(3),
atan(3),
atan2(3),
cos(3),
cosh(3),
sin(3),
sinh(3),
tan(3),
tanh(3),
math(3),
STANDARDS
The
Fn asin
function conforms to
St -ansiC .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- SEE ALSO
-
- STANDARDS
-
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Time: 00:35:29 GMT, March 30, 2022