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Union
Union of to set objects, |
Usage
Union(set1,set2)
set1 | set2
Arguments
set1, set2 (ARRAY or SET) : these two arguments must have the same type
Returned Object
Union returns a set object of the same type as its two arguments, i.e. either ARRAY or SET. If either set1 or set2 is Undef, returns Undef.
Description
Union(set1,set2) returns the set object made up by the objects of set1 and of set2. If set1 and set2 are ARRAYs, Union(set1,set2) concatenates the two arrays.
Note
Union can also be invoked with the minus sign |.
See Also
Inter, ToSet, ToArray, Sort, Merge.
Examples
AML> Union([1,2],[0,2,3,4])
<ARRAY(ANY)>[1,2,0,2,3,4]
AML> Union(Set(1,2),Set(0,2,3,4))
<SET(ANY)>[0,1,2,3,4]