allfinite - Determine if all array elements are finite - MATLAB (original) (raw)

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Determine if all array elements are finite

Since R2022a

Syntax

Description

`TF` = allfinite([A](#mw%5Fa7aa6c46-8583-43b9-ad73-47e178378220)) returns logical 1 (true) if all elements ofA are finite. It returns 0 (false) if any element is not finite.

If A contains complex numbers, allfinite(A) returns 1 if all elements have finite real and imaginary parts, and0 otherwise.

example

Examples

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Create a row vector and determine if all elements are finite.

A = 1×4 1023 ×

-0.0000 -0.0000 1.0000 0.0000

Create another row vector and determine if all elements are finite.

Create a matrix and determine if all elements are finite.

A = [0 0 3;0 0 3;0 0 NaN]

A = 3×3

 0     0     3
 0     0     3
 0     0   NaN

Create a 3-D array and determine if all elements are finite.

A(:,:,1) = [2 1; 3 5]; A(:,:,2) = [0 0; 0 Inf]; A(:,:,3) = [-2 9; 4 1]

A = A(:,:,1) =

 2     1
 3     5

A(:,:,2) =

 0     0
 0   Inf

A(:,:,3) =

-2     9
 4     1

Create a vector of complex numbers. Determine if all elements are finite.

A = 1×3 complex

2.0000 + 3.0000i Inf + 1.0000i 0.0000 - 2.0000i

allfinite(A) returns 0 because the second element of A has a real part that is infinite.

Input Arguments

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Input array, specified as a scalar, vector, matrix, or multidimensional array.

Example: [pi NaN Inf -Inf]

Extended Capabilities

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Theallfinite function fully supports tall arrays. For more information, see Tall Arrays.

The allfinite function fully supports GPU arrays. To run the function on a GPU, specify the input data as a gpuArray (Parallel Computing Toolbox). For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox).

Version History

Introduced in R2022a