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VECT_ANGLE

VECT_ANGLE

Name


      VECT_ANGLE

Purpose


      Angular distance between vectors.

Category


Calling Sequence


      ang = vect_angle(x1,y1,z1, x2,y2,z2)

Inputs


      x1,y1,z1 = coordinates of point 1. in
      x2,y2,z2 = coordinates of point 2. in

Keyword Parameters


Keywords


        /DEGREES means angles are in degrees, else radians.

Outputs


      a = angular distance between points. out

Common Blocks


Notes


      Notes: points 1 and 2 may be arrays.

Modification History


      R. Sterner, 5 Feb, 1991
      R. Sterner, 26 Feb, 1991 --- Renamed from vector_angle.pro
  Copyright (C) 1991, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.



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