Outputs one element from a list as selected by an integer. {} An integer acts as an index {\,} it selects the position of an element in a list. The selected element is output {\,} for example: integer {"0"} selects and outputs the first element in a list {\,} integer {"1"} selects and outputs the second element in a list {\,} integers {"-1"} selects and outputs the last element in a list. Changes the value of the argument i.e. changes the index into the list to get a different element. The element selected by the index is sent to the outlet {} a list of numbers or symbols.