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Logical Operations

True or false (Boolean) conditions

The logical data type represents true or false states using the numbers 1 and 0, respectively. Certain MATLAB® functions and operators return logical values to indicate fulfillment of a condition. You can use those logical values to index into an array or execute conditional code. For more information, see how to Find Array Elements That Meet a Condition.

Functions

Logical Operators: Short-circuit Logical operations with short-circuiting
and Find logical AND
not Find logical NOT
or Find logical OR
xor Find logical exclusive-OR
all Determine if all array elements are nonzero or true
any Determine if any array elements are nonzero
false Logical 0 (false)
find Find indices and values of nonzero elements
islogical Determine if input is logical array
logical Convert numeric values to logicals
true Logical 1 (true)

Examples and How To

Find Array Elements That Meet a Condition

You can filter the elements of an array by applying one or more conditions to the array. Use relational operators (>, <, >=, <=, ==, ~=) to impose conditions on the array. Connect multiple conditions with the logical operators (&, |, ~).

Determine if Arrays Are Logical

To determine whether an array is logical, you can test the entire array or each element individually.

Reduce Logical Arrays to Single Value

Use the any or all functions to reduce an entire numeric or logical array to a single scalar logical .

Concepts

Operator Precedence

Precedence rules determine the order in which MATLAB evaluates an expression.

Truth Table for Logical Operations

This reference table shows the results of applying the binary logical operators to a series of logical 1 (true) and logical 0 (false) scalar pairs.

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