is_real (MathScript RT Module Function)

LabVIEW 2012 MathScript RT模块帮助

版本日期:June 2012

产品编号:373123C-0118

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(仅限Windows)

Owning Class: membership

Requires: MathScript RT Module

Syntax

c = is_real(a)

Legacy Name: isreal

Description

Determines whether a matrix is real. A number is real if and only if in a=Re(a)+Im(a)*i, the second term Im(a) is 0. A matrix is real if and only if all elements in that matrix are real.

Examples

Inputs

Name Description
a Specifies a scalar, vector, or matrix of any data type but plot objects and (Control Design and Simulation Module) state-space, transfer function, and zero-pole-gain models.

Outputs

Name Description
c Returns 1 if a is a real matrix. Otherwise, this function returns 0. c is a Boolean.

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 Yes

Examples

C = is_real([5+0i, 7, 6, 789-8.3i])
C = is_real('der')

Related Topics

complex
imag
real

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