COSS (3sciport)

Computes cosine and sine

SYNOPSIS

  result = COSS( arg )

FUNCTION VALUE

  coss            Complex.
                  The cosine and sine, respectively, of arg are returned in
                  the real and imaginary parts of the complex result.

ARGUMENTS

  arg             Real.
                  A real input argument.

DESCRIPTION

  COSS evaluates z = cos(arg) + isin(arg) with one call. The results are the
  same as if COS(arg) and SIN(arg) are called separately, but COSS(arg) is
  faster.

  Since COSS is not an ANSI Fortran 77 intrinsic fucntion, it must be
  declared as EXTERNAL and COMPLEX.

  For equations and other information, see Volume 3: UNICOS Math and
  Scientific Library Reference Manual SR-2081 7.0, Cray Research, Inc.