TAN(3F)                              SysV                              TAN(3F)



NAME
     tan, dtan - FORTRAN tangent intrinsic function

SYNOPSIS
     real r1, r2
     double precision dp1, dp2

     r2 = tan(r1)

     dp2 = dtan(dp1)
     dp2 = tan(dp1)

DESCRIPTION
     tan returns the real tangent of its real argument.  dtan returns the
     double-precision tangent of its double-precision argument.  The generic
     tan function becomes dtan as required with a double-precision argument.

SEE ALSO
     trig(3M).