Union

Usage

• Union[, , ... ] gives a sorted list of all the distinct elements that appear in any of the .
• Union[list] gives a sorted version of a list, in which all duplicated elements have been dropped.

Notes

• If the are considered as sets, Union gives their union.

• Union[, , ... ] can be input in StandardForm and InputForm as ... . The character can be entered as un or \[Union].

• The must have the same head, but it need not be List.

• Union[, ... , SameTest->test] applies test to each pair of elements in the to determine whether they should be considered the same.

Further Examples