is an attribute that can be assigned to a symbol to indicate that the function should automatically be threaded over lists that appear as its arguments.
- Listable functions are effectively applied separately to each element in a list, or to corresponding elements in each list if there is more than one list.
- Most built‐in mathematical functions are Listable. »
- All the arguments which are lists in a Listable function must be of the same length. »
- Arguments that are not lists are copied as many times as there are elements in the lists.
Introduced in 1988