HP Fortran Programmer's Reference (September 2007)

Intrinsic procedures
Intrinsic procedure specifications
Chapter 11 525
Result type/
type parameters
Same as X.
Result value
The result has a value equal to a processor-dependent approximation to arcsin(X), expressed
in radians. It lies in the range -Pi/2 <= ASIN(X) <= Pi/2.
Specific forms
DASIN, QASIN.
ASIND(X)
Description
Arcsine (inverse sine) function in degrees.
Class
Elemental nonstandard function.
Argument
X must be of type real. Its value must satisfy the inequality |X| <= 1.
Result type/
type parameters
Same as X.
Result value
The result has a value equal to a processor-dependent approximation to arcsin(X), expressed
in degrees. It lies in the range
-90 <= ASIN(X) <= 90.
Specific forms
DASIND, QASIND.