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Member of the membership class.

Syntax

c = isreal(a)

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 matrix.

Outputs

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

Examples

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

Related Topics

complex
real
imag