why meijerG function is undefined variable in matlab

meijerG function is already defined in matlab, but when i use in our script, it gives the error "Undefined function or variable 'meijerG'." Please help to find the way

Answer 1

[Stephen23]

Probably you don't have the Symbolic Toolbox installed, or you don't have a license for it, or the function is not supported for your MATLAB version.

Do you have the Symbolic Toolbox installed, and a current license for it? Check what is installed:

ver

and check your licenses:

https://www.mathworks.com/matlabcentral/answers/285496-how-do-i-view-what-toolboxes-i-have-for-my-license#answer_223183

https://www.mathworks.com/matlabcentral/answers/97495-how-can-i-test-the-license-for-a-toolbox-in-matlab

What MATLAB version are you using?

[BIPIN SAW]

MATLAB Version:(R2015a) Symbolic Math Toolbox Version 6.2 (R2015a) is installed

[Torsten]

meijerG was introduced in R2017b ...

[Stephen23]

Well, you can either upgrade to 2017b or more recent, or write it yourself.

[Torsten]

Or use an implementation from the net.

[BIPIN SAW]

Thanks, Stephen Torsten for your quick help.