Map

Map[f, expr] or f /@ expr applies f to each element on the first level in expr.

Map[f, expr, levelspec] applies f to parts of expr specified by levelspec.

Examples: Map[f, a, b, c] ; Map[f, a + b + c] .

Level specifications are described in Section A.3.6.

The default value for levelspec in Map is {1}.

Examples: Map[f, a,b,c,d] ; Map[f, a,b,c,d, 2] ; Map[f, a,b,c,d, -1] .

If expr is a SparseArray object, Map[f, expr] applies f to the values or subarrays that appear in expr.

See Section 2.2.4.

See also: Apply, Scan, MapAll, MapAt, MapIndexed, MapThread, Level, Operate.

New in Version 1.

Further Examples