`or`

Logical OR, the function form of the operator |.

Category: Symbolic Computations in MATLAB > Operators and Elementary Operations

Syntax

C = or(A, B)

Same as A | B.

Description

The result is true at positions where at least one operand is nonzero. Operands may be numbers or logicals and are combined with the usual rules for compatible sizes.

For scalar conditions in if and while, || short-circuits and is generally preferred; or and | always evaluate both operands.

Input arguments

A, B: Numeric or logical arrays with compatible sizes. Nonzero means true.

Output arguments

C: Logical array: true where at least one input is nonzero.

Example

Elementwise OR

or([1 0 0], [0 0 1])
x = [-5 1 7 12];
x(or(x < 0, x > 10))

Output

ans = 1×3 logical array

   1   0   1
ans = 1×2

    -5    12

Notes

Symbolic operands are not supported (or(x > 1, x < 0) raises an error).

or