How to create a syms vector

How do I generate symbolic variables that I can put into a fminsearch function?

x = sym('x', [1 2]);
fun1 = 4*x(1)^2+3*x(2)+2 
myfun = matlabFunction(fun1,'Vars',x);

[xout,fval,exitflag,output] = fminsearch(myfun,[1 ,2])

I tried the code above, however myfun ends up being a function of two variables x1 and x2

@(x1,x2) x2.*3.0 + x1.^2.*4.0 + 2.0

So I have to rewrite the function by hand because I don't know how to generate a symbolic function that looks like this

x(1) x(2)

So I end up rewriting the function

@(x) x(2).*3.0+x(1).^2.*4.0+2.0

and this works

myfun2 =@(x) x(2).*3.0+x(1).^2.*4.0+2.0
[xout,fval,exitflag,output] = fminsearch(myfun2,[1 ,2])

So How do I generate a symbolic vector of x that can allow me to turn fun1 into myfun2

Answer 1

[Walter Roberson]

x = sym('x', [1 2]);
fun1 = 4*x(1)^2+3*x(2)+2 
myfun = matlabFunction(fun1,'Vars',{x});       %small difference from what you had

[xout,fval,exitflag,output] = fminsearch(myfun,[1 ,2])

[Steven]

Amazing what curly braces will do, Thanks