Thread

Thread[f[args]] "threads" f over any lists that appear in args.

Thread[f[args], h] threads f over any objects with head h that appear in args.

Thread[f[args], h, n] threads f over objects with head h that appear in the first n args.

Thread[f[args], h, -n] threads over the last n args.

Thread[f[args], h, m, n] threads over arguments m through n.

Example: Thread[f[a,b, c, d,e]] .

Functions with attribute Listable are automatically threaded over lists.

All the elements in the specified args whose heads are h must be of the same length.

Arguments that do not have head h are copied as many times as there are elements in the arguments that do have head h.

Thread uses the standard sequence specification (see Section A.3.5).

See Section 2.2.10.

See also: Distribute, Map, Inner, MapThread.

New in Version 1.

Further Examples