Flatten

Flatten[list] flattens out nested lists.

Flatten[list, n] flattens to level n.

Flatten[list, n, h] flattens subexpressions with head h.

Example: Flatten[a,b,c,d] .

Flatten "unravels" lists, effectively just deleting inner braces.

Flatten[list, n] effectively flattens the top level in list n times.

Flatten[f[e, ... ]] flattens out subexpressions with head f.

Flatten flattens out levels in SparseArray objects just as in the corresponding ordinary arrays.

See Section 1.8.12 and Section 2.2.10.

See also: Partition, FlattenAt.

New in Version 1.

Further Examples