cot(3I)

NAME
     COT, COTAN, DCOT, DCOTAN, QCOT, CQCOTAN - Computes cotangent

SYNOPSIS
     COT ([X=]x)
     COTAN ([X=]x)
     DCOT ([X=]x)
     DCOTAN ([X=]x)
     QCOT ([X=]x)
     QCOTAN ([X=]x)

STANDARDS
     Fortran extensions

DESCRIPTION
     COT is the generic function name; the others are specifics.  They are
     elemental intrinsic functions.  They accept the following argument:

     x         Must be of type real.  The type and kind type of x is
               identical to the type and kind type of the return value.
               See the RETURN VALUES section for more information on input
               data types and return values.

     These functions evaluate y = COT(x).

NOTES
     The COT and DCOT intrinsic function names can be passed as arguments;
     the others cannot.

     If |x| > pi * 219 or if x = NaN, COT(x) yields NaN.

RETURN VALUES
     COT and COTAN return the single-precision real cotangent of their
     single-precision real arguments.

     DCOT and DCOTAN return the double-precision real cotangent of their
     double-precision real arguments.

     QCOT and QCOTAN return the quad-precision real cotangent of their
     quad-precision real arguments.

     The terms single precision, double precision, and quad precision
     differ depending on your platform.  For platform-specific information,
     see the TERMINOLOGY section of the INTRO_INTRIN(3I) man page.