asin(3F)

NAME
     asin, dasin, qasin, asind, dasind, qasind - FORTRAN arcsine intrinsic
     function

SYNOPSIS
     real r1, r2
     double precision dp1, dp2
     real*16 qp1, qp2
     real*4 r3, r4
     real*8 dp3, dp4
     real*16 qp3, qp4

     r2 = asin(r1)

     dp2 = dasin(dp1)
     dp2 = asin(dp1)

     qp2 = qasin(qp1)
     qp2 = asin(qp1)

     r4 = asind(r3)

     dp4 = dasind(dp3)
     dp4 = asind(dp3)

     qp4 = qasind(qp3)
     qp4 = asind(qp3)

DESCRIPTION
     asin returns the real arcsine of its real argument, dasin returns the
     double-precision arcsine of its double-precision argument, and qasin
     returns the real*16 arcsine of its real*16 argument.  The absolute value
     of the arguments for asin, dasin, and qasin must be less than or equal to
     one.  The result is in radians and is in the range -pi/2 <=  result <=
     pi/2.  The generic form asin may be used with impunity as it derives its
     type from that of its argument.

     asind returns the real*4 arcsine of its real*4 argument, dasind returns
     the real*8 arcsine of its real*8 argument, and qasind returns the real*16
     arcsine of its real*16 argument.  The absolute value of the arguments for
     asind, dasind, and qasind must be less than or equal to one.  The result
     is in degrees and is in the range -90 <=  result <= 90.  The generic form
     asind may be used with impunity as it derives its type from that of its
     argument.

SEE ALSO
     trig(3M).