Returns the cotangent of its radian argument.
    Format
      #include  <math.h>
      double cot  (double x);
      float cotf  (float x); (Integrity servers, Alpha)
      long double cotl  (long double x); (Integrity servers, Alpha)
      double cotd  (double x); (Integrity servers, Alpha)
      float cotdf  (float x); (Integrity servers, Alpha)
      long double cotdl  (long double x); (Integrity servers, Alpha)
Additional Information:
explode
extract