Union of sequences

Read(242) Label: sequences, union, new sequence,

Description:

The operation generates a new sequence by merging two sequences.

Syntax:

A&B

Note:

Generate a new sequence by merging the members (or single values) from two sequences A and B  in proper order. The common members will not appear repeatedly in the new sequence.

Parameters:

A

A sequence with the length of n

B

A sequence with the length of m or a single value; When it is a single value, it is regarded as [B]

Return value:

A new sequence after merging the two sequences A and B

Example: 

 

A

 

1

=[1,2,3,4]&[3,2]

[1,2,3,4]. If members of the two sequences are not arranged in the same order, then follow the order of the first sequence

2

=[1,2,3,3]&[1,3]

[1,2,3,3]. Duplicate members will not appear repeatedly, but the same members in the former sequence will be retained

3

=[1,2,3,3]&4

[1,2,3,3,4]

4

=4&[1,2,3,3]

[4,1,2,3,3]

Related functions:

Difference between sequences

Intersection of sequences

Concatenation of sequences

Multiplication of sequences

Alignment arithmetic operations

cmp()