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5.1.51 insert

Syntax:

insert ( list_expression, expression )
insert ( list_expression, expression, int_expression )

Type:

list

Purpose:

inserts a new element (expression) into a list at the beginning, or (if called with 3 arguments) after the given position (the input is not changed).

Example:
 
  list L=1,2;
  insert(L,4,2);
→ [1]:
→    1
→ [2]:
→    2
→ [3]:
→    4
  insert(L,4);
→ [1]:
→    4
→ [2]:
→    1
→ [3]:
→    2

See delete; list.

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