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NAME
     libm_single - FORTRAN access to single-precision libm  func-
     tions

SYNOPSIS
     Example for non-intrinsics:

     REAL c, s, x, y, z
      ...
     z = r_acosh( x )
     i = ir_finite( x )
     z = r_hypot( x, y )
     z = r_infinity()
     CALL r_sincos( x, s, c )

     Note:  The REAL functions used are not in a REAL  statement.
     Type  is  determined  by  the  default  typing rules for the
     letter "r".

DESCRIPTION
     These subprograms provide access  to  single-precision  libm
     functions and subroutines.

     asind(x), sind(x), and so on involve  degrees,  rather  than
     radians.

INTRINSICS
     The following FORTRAN  intrinsic  functions  return  single-
     precision values if their arguments are single-precision.

     You need not put them in a type statement. If  the  function
     needed  is available as an intrinsic function, it is simpler
     to use an intrinsic than a non-intrinsic function.

     The variables x and y are of type real.

     sqrt(x)    asin(x)      acosd(x)*
     log(x)     acos(x)      asind(x)*
     log10(x)   atan(x)      acosd(x)*
     exp(x)     atan2(x,y)   atand(x)*
     x**y       sinh(x)      atan2d(x,y)*
     sin(x)     cosh(x)*     aint(x)
     cos(x)     tanh(x)*     anint(x)
     tan(x)     sind(x)*     nint(x)

     * = nonstandard: it is an extension that this is intrinsic



NON-INTRINSIC FUNCTIONS AND SUBROUTINES
     In general, these functions do not  correspond  to  standard
     FORTRAN generic intrinsic functions, so their data types are
     determined by the usual FORTRAN data typing rules.

     The variables c, l, p, s, u, x, and y are of type real.

     r_acos( x )                real       function
     r_acosd( x )               real       function
     r_acosh( x )               real       function
     r_acosp( x )               real       function
     r_acospi( x )              real       function

     r_atan( x )                real       function
     r_atand( x )               real       function
     r_atanh( x )               real       function
     r_atanp( x )               real       function
     r_atanpi( x )              real       function

     r_asin( x )                real       function
     r_asind( x )               real       function
     r_asinh( x )               real       function
     r_asinp( x )               real       function
     r_asinpi( x )              real       function

     r_atan2(( y, x )           real       function
     r_atan2d( y, x )           real       function
     r_atan2pi( y, x )          real       function

     r_cbrt( x )                real       function
     r_ceil( x )                real       function
     r_copysign( x, y )         real       function

     r_cos( x )                 real       function
     r_cosd( x )                real       function
     r_cosh( x )                real       function
     r_cosp( x )                real       function
     r_cospi( x )               real       function

     r_erf( x )                 real       function
     r_erfc( x )                real       function

     r_expm1( x )               real       function
     r_floor( x )               real       function
     r_hypot( x, y )            real       function
     r_infinity( )              real       function

     r_j0( x )                  real       function
     r_j1( x )                  real       function
     r_jn( x )                  real       function

     ir_finite( x )             integer    function
     ir_fp_class( x )           integer    function
     ir_ilogb( x )              integer    function
     ir_irint( x )              integer    function
     ir_isinf( x )              integer    function
     ir_isnan( x )              integer    function
     ir_isnormal( x )           integer    function
     ir_issubnormal( x )        integer    function
     ir_iszero( x )             integer    function
     ir_signbit( x  )           integer    function

     r_addran()                 real       function
     r_addrans( x, p, l, u )    n/a        subroutine
     r_lcran()                  real       function
     r_lcrans( x, p, l, u )     n/a        subroutine
     r_shufrans(x, p, l, u)     n/a        subroutine

     r_lgamma( x )              real       function
     r_logb( x )                real       function
     r_log1p( x )               real       function
     r_log2( x )                real       function

     r_max_normal()             real       function
     r_max_subnormal()          real       function
     r_min_normal()             real       function
     r_min_subnormal()          real       function
     r_nextafter( x, y )        real       function
     r_quiet_nan( n )           real       function
     r_remainder( x, y )        real       function
     r_rint( x )                real       function
     r_scalb( x, y )            real       function
     r_scalbn( x, n )           real       function
     r_signaling_nan( n )       real       function
     r_significand( x )         real       function

     r_sin( x )                 real       function
     r_sind( x )                real       function
     r_sinh( x )                real       function
     r_sinp( x )                real       function
     r_sinpi( x )               real       function

     r_sincos( x, s, c )        n/a        subroutine
     r_sincosd( x, s, c )       n/a        subroutine
     r_sincosp( x, s, c )       n/a        subroutine
     r_sincospi( x, s, c )      n/a        subroutine

     r_tan( x )                 real       function
     r_tand( x )                real       function
     r_tanh( x )                real       function
     r_tanp( x )                real       function
     r_tanpi( x )               real       function

     r_y0( x )                  real       function
     r_y1( x )                  real       function
     r_yn( n,x )                real       function

FILES
     libm.a

SEE ALSO
     intro(3M)
     FORTRAN 77 Reference Manual
     Numerical Computation Guide

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