calling a funcion in a loop and replacing input variable with output variable

So I have the funcion:

function y=function_for_Ex6a(x)

% This is a simple function

y=4*(1-cos(x)).^2+x.^3;

end

And I want to use a for loop to run through this function 100 times with an initial input of x=4. I need the output value of y to replace the input value for each interation. Any ideas? Please don't just send links to other websites. Thanks.

Answer 1

[KALYAN ACHARJYA]

%My Answer is based on what I have understood, if any issue please clarify it.

function y=function_for_Ex6a(x)
     y=4*(1-cos(x)).^2+x.^3;
end

Now call the function

y=function_for_Ex6a(4);
for i=1:100
y=function_for_Ex6a(y)  % You can use indexing y(i), if required
end

More

y(1)=function_for_Ex6a(4);
for i=2:100
y(i)=function_for_Ex6a(y(i-1));  
end

[Gregory Power]

Thank you.