The positive integer is arbitrary in principle, but in practice rarely exceeds 6, say. Several classes of methods can now be distinguished according to the position of and relative to the interpolating points, see the following Table.
Method
Adams-Bashforth
Adams-Moulton
Nystrom
Milne-Simpson
is arbitrary in principle, but in practice rarely exceeds 6, say. Several classes of methods can now be distinguished according to the position of 
and 
relative to the interpolating points, see the following Table. 
