Documentation

Middle

Middle[expr]⟹out

returns the middle element of expr.

Details

If the Length of 'expr' is even, returns the element immediately to the left of middle.
Use Return->Right to return the element immediately right of middle in the case of even length input.

Input

Output

General Options

Messages

	argx	Middle called with `1` arguments; 1 argument is expected.
	middle	`1` has a length of zero and no middle element.
	normal	Nonatomic expression expected at position 1 in `1`

Examples

Basic Examples (4)

Return the middle element of the list:

If length of list is even, return the element immediately before the middle:

Middle also works with Heads other than List:

Given list of lists, returns a list. Note that Middle is not listable:

Options (1)

Output (1)

Use Output option to return element Right of middle when length of input is even:

Messages (3)

argx (1)

Too many arguments throws message:

middle (1)

Empty list throws message:

normal (1)

Atomic input throws message: