MATLAB Answers

Error: Function definition not supported in this context. Create functions in code file.

685 views (last 30 days)
Hello,
I was trying to create a simple function on matlab, I already have a file named "AddOne.m", so it should work, however at the first line of code, matlab throws the following error
"Error: Function definition not supported in this context. Create functions in code file.". Any ideas how to sort this out?
Thanks in advance!
matlab pifiando la funcion.png

  2 Comments

Stephen Cobeldick
Stephen Cobeldick on 28 Jan 2020
In MATLAB functions cannot be defined in the command window.
You appear to be running the entire function in the command window in an attempt to define that function.
You don't need to do that: just define the function in a file, and then call it. That is all you need to do.

Sign in to comment.

Accepted Answer

Deepak Gupta
Deepak Gupta on 6 May 2020
Hi Augstin,
In matalb, you need to write your function in a seperate matlab file and then you can call this function either from command window or from a seperate matlab file.
For example, here you can write your matlab function addOne.m in one file. File content can be something like:
%File addOne.m
function finalAnswer = addOne(inputNumber)
finalAnswer = inputNumber+1;
end
Now you can use this function in your other matlab file or in command window. For example, you can create a seperate file to call this function.
% File testaddOne.m
inputNumber = 5;
finalAnswer = addOne(inputNumber);
disp('Thining...');
fprintf('Final Answer: %d \n', finalAnswer);
display('Done');
To avoid confusion, for now keep both files at one place. When you run file testaddOne.m, it will automatically call other file and make use of it.
Cheers.

  0 Comments

Sign in to comment.

More Answers (1)

kazi sharif
kazi sharif on 8 Sep 2020
function Divide_Average(a,x0,tol)
clc
if a<0
b=abs(a);
else
b=a;
%fprint(' Neagtive Number is not taken in Square root');
end
x = zeros(1,1);
fprontf('i x(i)\n');
fprintf('---------\n');
x(1)= x0; fprintf('%5.0f\t %15.5f\n',1,x(1));
i=2;
while (1)
x(i) = 0.5*(x(i-1) + a/x(i-1));
fprintf('%5.0f\t %15.5f\n',i,x(i));
RelER = (x(i) - x(i-1))/x(i-1);
if abs(RelER) <= tol, break, end
i = i + 1;
end
fprintf('\n\n Square Root of %10.5f\t is %10.5f\n',a,x(end));
end
function Divide_Average(a,x0,tol)
Error: Function definition not supported in this context. Create functions in code file.
>>

  0 Comments

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!