drop(BasicList,ZZ) -- drop some elements

drop(BasicList,ZZ) -- drop some elements

Synopsis:

Usage: w = drop(v,n)

Function: drop -- drop some elements

Input:

v, an instance of class BasicList.

n, an instance of class ZZ.

Output:

w, an instance of class BasicList: a list obtained by omitting the first n elements of the list v if n is positive, or the last -n elements if n is negative.

i1 : drop({a,b,c,d,e},2)



o1 = {c, d, e}



o1 : List

i2 : drop({a,b,c,d,e},-2)



o2 = {a, b, c}



o2 : List