gammaln

Logarithm of gamma function

Syntax

Y = gammaln(A)


Description

Y = gammaln(A) returns the logarithm of the gamma function, gammaln(A) = log(gamma(A)). Input A must be nonnegative and real. The gammaln command avoids the underflow and overflow that may occur if it is computed directly using log(gamma(A)).

Extended Capabilities

Tall Arrays

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

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

C/C++ Code Generation
Generate C and C++ code using MATLAB® 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 gammaln 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