ASIN(X)
Purpose
Arcsine (inverse sine) function.
Class
Elemental function
Argument type and attributes
X
must be of type real. Its value must satisfy the inequality |X| <= 1.
Result type and attributes
Same as X.
Result value
It is expressed in radians, and approximates arcsin(X).
It is in the range -
PI
/2 <= ASIN(X) <=
PI
/2.
Examples
ASIN
(1.0) approximates
PI
/2.
Specific Name
Argument Type
Result Type
Pass As Arg?
ASIN
default real
default real
yes
DASIN
double precision real
double precision real
yes
QASIN
1
REAL(16)
REAL(16)
yes
QARSIN
1
REAL(16)
REAL(16)
yes
Notes:
IBM Extension.