isfloat

Determine if input is floating-point array

Syntax

tf = isfloat(A)

Description

tf = isfloat(A) returns true if A is a floating-point array and false otherwise. The floating-point types are single and double.

Examples

Determine Whether Numbers Are Floating-Point Type

These examples show the values isfloat returns when passed specific types:

% pi returns a floating-point value
isfloat(pi)

ans = logical
   1

% Complex numbers are floating-point values
isfloat(3+7i)

ans = logical
   1

% Single-precision numbers are floating-point values
isfloat(realmax('single'))

ans = logical
   1

% isfloat returns a logical value
isfloat(isfloat(pi))

ans = logical
   0

Input Arguments

A — Input array

scalar | vector | matrix | multidimensional array

Input array, specified as a scalar, vector, matrix, or multidimensional array. Floating-point types in MATLAB^® include single and double (and subclasses of single and double).

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

GPU Code Generation
Generate CUDA® code for NVIDIA® GPUs using GPU Coder™.

Thread-Based Environment

Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.

GPU Arrays

Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox™.

The isfloat 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).

Distributed Arrays

Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.

This function fully supports distributed arrays. For more information, see Run MATLAB Functions with Distributed Arrays (Parallel Computing Toolbox).

Version History

Introduced before R2006a