Insert Command

Insert[ <Object>, <List>, <Position> ]

Inserts the object in the list at the given position.

Example:

Insert[x^2, {1, 2, 3, 4, 5}, 3] places x² at the third position and creates the list {1, 2, x², 3, 4, 5}.

Note: If the position is a negative number, then the position is counted from the right.

Example:

Insert[x^2, {1, 2, 3, 4, 5}, -1] places x² at the end of the list and creates the list {1, 2, 3, 4, 5, x²}.

Insert[ <List>, <List>, <Position> ]

Inserts all elements of the first list in the second list at the given position.

Example:

Insert[{11, 12}, {1, 2, 3, 4, 5}, 3] places the elements of the first list at the third (and following) position(s) of the second list and creates the list {1, 2, 11, 12, 3, 4, 5}.

Note: If the position is a negative number, then the position is counted from the right.

Example:

Insert[{11, 12}, {1, 2, 3, 4, 5}, -2] places the elements of the first list at the end of the second list before its last element and creates the list {1, 2, 3, 4, 11, 12, 5}.