keep "Error: File: nozzlecalculator.m Line: 24 Column: 19 Local function name must be different from the script name".What i posted below is a part of a function scriptnamed nozzelcalculator, so when try calling it from main script i get this error.

function outlet = nozzlecalculator(Athroat,Aexit,Pstagnation,Pback)

         if Athroat < Aexit 
             output('user input is valid')
         else 
             error('Athroat must be less than Aexit')
         end

     % Calculate the first critical pressure (Pc1)
    Mexit = areamachnumber(Athroat,Aexit,false);
    Pc1 = staticpressure(Pstagnation,Mexit);   
end

[Rik]

What don't you understand about the error message? Either rename your script or your function.

Answer 1

[Monisha Nalluru]

When ever your are creating local function with in a script, the function name and script name should be different.

You can either change the function name or script name depending upon the usecase.

Refer the following documentation for local functions