# ccot.f

          COMPLEX FUNCTION CCOT (Z)
    C***BEGIN PROLOGUE  CCOT
    C***PURPOSE  Compute the cotangent.
    C***LIBRARY   SLATEC (FNLIB)
    C***CATEGORY  C4A
    C***TYPE      COMPLEX (COT-S, DCOT-D, CCOT-C)
    C***KEYWORDS  COTANGENT, ELEMENTARY FUNCTIONS, FNLIB, TRIGONOMETRIC
    C***AUTHOR  Fullerton, W., (LANL)
    C***DESCRIPTION
    C
    C CCOT(Z) calculates the complex trigonometric cotangent of Z.
    C
    C***REFERENCES  (NONE)
    C***ROUTINES CALLED  R1MACH, XERCLR, XERMSG
    C***REVISION HISTORY  (YYMMDD)
    C   770401  DATE WRITTEN
    C   890531  Changed all specific intrinsics to generic.  (WRB)
    C   890531  REVISION DATE from Version 3.2
    C   891214  Prologue converted to Version 4.0 format.  (BAB)
    C   900315  CALLs to XERROR changed to CALLs to XERMSG.  (THJ)
    C   900326  Removed duplicate information from DESCRIPTION section.
    C           (WRB)
    C***END PROLOGUE  CCOT