interpoint       
adjective [ before noun ]  mathematics specialized (also inter-point) uk/ˈɪn.tə.pɔɪnt/ us/ˈɪn.t̬ɚ.pɔɪnt/
 (制图)点间的
between the points on a graph (= a picture showing how two sets of information are related)
  small interpoint distances
 a set of interpoint vectors 一组点间向量 
 - More examples
 - The interpoint distances reflect similarities between the items.
 - This method enables us to find the co-ordinates of the points whose interpoint distances are in agreement with the given similarities between the points.
 - All of the techniques described so far assume that the matrix of interpoint distances is a symmetrical one.
 - The set of interpoint vectors is finitely generated.