real

Real part of complex number

Syntax

X = real(Z)

Description

X = real(Z) returns the real part of each element in array Z.

Examples

Real Part of Complex Number

Find the real part of the complex number Z.

Z = 2+3i;
X = real(Z)

X = 
2

Real Part of Vector of Complex Values

Find the real part of each element in vector Z. The real function acts on Z element-wise.

Z = [0.5i 1+3i -2.2];
X = real(Z)

X = 1×3

         0    1.0000   -2.2000

Input Arguments

Z — Input array

scalar | vector | matrix | multidimensional array

Input array, specified as a scalar, vector, matrix, or multidimensional array. real operates element-wise when Z is nonscalar.

Extended Capabilities

Tall Arrays

Calculate with arrays that have more rows than fit in memory.

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

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

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

HDL Code Generation
Generate VHDL, Verilog and SystemVerilog code for FPGA and ASIC designs using HDL 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 real 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