COS (number)

  Class:  Elemental function - Generic

  Returns the cosine of the argument.  The argument must be in
  radians; it is treated modulo 2*pi.

  +------+---------+----------+------------+-------------+
  | Args | Generic | Specific |  Argument  | Result Type |
  +------+---------+----------+------------+-------------+
  |   1  |  COS    | COS      | REAL*4     | REAL*4      |
  |      |         | DCOS     | REAL*8     | REAL*8      |
  |      |         | QCOS     | REAL*16    | REAL*16     |
  |      |see note | CCOS     | COMPLEX*8  | COMPLEX*8   |
  |      |         | CDCOS    | COMPLEX*16 | COMPLEX*16  |
  |      |         | ZCOS     | COMPLEX*16 | COMPLEX*16  |
  |      |         | CQCOS    | COMPLEX*32 | COMPLEX*32  |
  +------+---------+----------+------------+-------------+

  Note: The setting of compiler options specifying real
        size can affect CCOS.