Documentation

Mathematica Teacher's Edition

Built-in Functions

Lists and Matrices

List Operations

Delete

Delete[expr, n] removes the element at position n in expr. If n is negative, the position is counted from the end.
Delete[expr, i, j, ... ] removes the part at position i, j, ... .
Delete[expr, , , ... , , , ... , ... ] deletes parts at several positions.

Example: Delete[a, b, c, d, 3].
Delete[a, b, c, d, 1, 3].
Example: Delete[a, b, c, 2, 0].
See The Mathematica Book on the web: Section 1.8.6.
See also: Insert, ReplacePart, DeleteCases, Drop.

Further Examples