Programming

Logical Types

The logical data type represents a logical true or false state using the numbers 1 and 0, respectively. Certain MATLAB functions and operators return logical true or false to indicate whether a certain condition was found to be true or not. For example, the statement (5 * 10) > 40 returns a logical true value.

Logical data does not have to be scalar; MATLAB supports arrays of logical values as well. For example, the following statement returns a vector of logicals indicating false for the first two elements and true for the last three:

• [30 40 50 60 70] > 40
  ans =
       0     0     1     1     1
  

This section covers the following topics:

• Creating a Logical Array
• How Logical Arrays Are Used
• Identifying Logical Arrays

Function Summary

Creating a Logical Array

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