source/cluster/wham/src/icant.f

   1       integer function icant(i,j)
   2       integer i,j
   3       if (i.ge.j) then
   4         icant=(i*(i-1))/2+j
   5       else
   6         icant=(j*(j-1))/2+i
   7       endif
   8       return
   9       end