How to get matlab to create a function from system inputs and perform its fminsearch

I want to use the simplex search method 'fminsearch' https://de.mathworks.com/help/matlab/ref/fminsearch.html

to find the minimum point of a function for example f(x(1),x(2)) = x(2) - n*x(1) while n could be any number depending on the input of system.

There were 2 methods i tried implementing

1. create symbolic valuables

x = sym('x_%d',[1 2]);
syms n;
f = x(2) - n*x(1);

and then i got

f = x_2 - n*x_1

but i dont know how to convert it to

f = @(x,n)(x(2) - n*x(1));

so i can perform

n = %input;
fun = @(x)f(x,n);
x0 = [1,1];
x = fminsearch(fun,x0)

2. execute

x0 = [1,1];
x = fminsearch(@objectivefcn1,x0)

by creating an objective function

function f = objectivefcn1(x)
f = x(2) - n*x(1);
end

anyway, i still can't find a way to pass the input n to the function without doing

function f = objectivefcn1(x,n)
f = x(2) - n*x(1);
end

Answer 1

[Tony Mohan Varghese]

Please refer the example for minimizing a function with extra parameters:

link