How do I call two function statements in a main program, and how to run it?

I have all parameters in the main program and want to use two function statements.

%----------------
function [mu]=mu(emass,ncarrier,kelvin,rerr)
return
%----------------

and the other :

function [fermi]=fermi(beta,energy,mu1)
return

These functions input values are defined in main program:

muhh=mu(mhh,ncarrier,kelvin,rerr)%Call mu chemical potential function for holes
mue=mu(me,ncarrier,kelvin,rerr) %Call mu chemical potential function for electrons

and

fhh=fermi(beta,Ehh,muhh); %Call Fermi function for holes
fe=fermi(beta,Ee,mue);

How do I call these function statements?

Answer 1

[Athos Garcia]

If you're using a script save the 2 functions in separate files and just call it like you did. But if your main program is also a function just remember to put the functions before the 'end' of the main program, like this:

function mainProgram()
% Define the variables values
mhh = 5;
ncarrier = 3;
% etc. etc.

muhh=mu(mhh,ncarrier,kelvin,rerr)%Call mu chemical potential function for holes
mue=mu(me,ncarrier,kelvin,rerr) %Call mu chemical potential function for electrons

fhh=fermi(beta,Ehh,muhh); %Call Fermi function for holes
fe=fermi(beta,Ee,mue);

    function [mu]=mu(emass,ncarrier,kelvin,rerr)
      mu = somethig;
    end

    function [fermi]=fermi(beta,energy,mu1)
      fermi = something;
    end

end % end of main program

[Arvind Sharma]

this works

Answer 2

[Image Analyst]

You are calling them correctly. As long as the variables (mhh, beta, etc.) that you are passing into the functions are already assigned values by your calling/main routine, you will be okay. Are you not observing that? Do you have a problem or error? If so, what?