Place the intersection of two double precision windows into 
   a third window. 

   WINDOWS 

   VARIABLE  I/O  DESCRIPTION 
   --------  ---  -------------------------------------------------- 
   a, 
   b          I   Input windows. 
   c          I   Intersection of a and b. 

   a, 
   b           are CSPICE windows, each of which contains zero or more 
               intervals. 

               a and b must be declared as double precision 
               SpiceCells.

   c           is the output CSPICE window, containing the intersection 
               of a and b---every point contained in both a and b. 

               c must be declared as a double precision SpiceCell.

               c must be distinct from both a and b. 

   None. 

   The intersection of two windows contains every point contained 
   both in the first window and in the second window. 

   Let a contain the intervals 

      [ 1, 3 ]  [ 7, 11 ]  [ 23, 27 ] 

   and b contain the intervals 

      [ 2, 4 ]  [ 8, 10 ]  [ 16, 18 ] 

   Then the intersection of a and b contains the intervals 

      [ 2, 3 ]  [ 8, 10 ] 

   None. 

   1) If any of the function arguments are SpiceCells of type
      other than double precision, the error SPICE(TYPEMISMATCH)
      is signaled.

   2) If the intersection of the two windows results in an excess of 
      elements, the error SPICE(WINDOWEXCESS) is signaled. 

   None. 

   N.J. Bachman    (JPL)
   H.A. Neilan     (JPL) 
   W.L. Taber      (JPL) 
   I.M. Underwood  (JPL) 

   None. 

   -CSPICE Version 1.0.0, 29-JUL-2002 (NJB) (HAN) (WLT) (IMU)

   intersect two d.p. windows