# is_membermx (MathScript RT Module Function)

LabVIEW 2012 MathScript RT Module Help

Edition Date: June 2012

Part Number: 373123C-01

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Owning Class: membership

Requires: MathScript RT Module

## Syntax

c = is_membermx(a, b)

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

[c, d] = is_membermx(a, b)

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

Legacy Name: `ismember`

## Description

Determines whether an element in one matrix is an element of another matrix. If you specify 'rows', a and b must have the same number of columns, and is_membermx(a, b, 'rows') determines whether the rows of a are in b.

Examples

## Inputs

Name Description
a Specifies a matrix.
b Specifies a matrix.

## Outputs

Name Description
c Returns a matrix of Boolean values. An element in c is 1 if and only if the corresponding element of a is a member of b. Otherwise, the element is 0. c is a matrix of the same size as a. c is a vector or matrix.
d Returns the positions in b of the elements of a. If an element in a is not in b, the corresponding element in d is 0. d 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 = is_membermx(A, B)