# sets_union (MathScript RT Module Function)

LabVIEW 2012 MathScript RT Module Help

Edition Date: June 2012

Part Number: 373123C-01

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Owning Class: sets

Requires: MathScript RT Module

## Syntax

c = sets_union(a, b)

c = sets_union(a, b, 'rows')

[c, d, e] = sets_union(a, b)

[c, d, e] = sets_union(a, b, 'rows')

Legacy Name: `union`

## Description

Returns the elements that are in at least one of the inputs.

Examples

## Inputs

Name Description
a Specifies a vector or matrix.
b Specifies a vector or matrix.
'rows' Specifies that c returns the rows that are in a or b. You can specify this input when a and b are matrices with the same number of columns.

## Outputs

Name Description
c Returns in ascending order the elements that are in a or b. If a contains repeated elements that also are in b, c contains as many of those repeated elements as are in a. c is a vector or matrix.
d Returns the indexes in a of the elements in c. d is a vector of integers.
e Returns the indexes in b of the elements in c. e is a vector of integers.

## Details

The following table lists the support characteristics of this function.

 Supported in the LabVIEW Run-Time Engine Yes Supported on RT targets Yes Suitable for bounded execution times on RT Not characterized

## Examples

A = [1, 2, 3, 4, 5, 6, 7, 8, 9]
B = [2, 3, 5, 7]
C = sets_union(A, B)