i need to change a mathematical formula inside a function from a script

hi, i need to change a mathematical formula inside a function from a script. i think i shuld use a syms, so far i haven't realized how to do so,

clc
syms x
variable=x;
x=sym(variable);
a=cos(x);
a=subs(a,x,2)

this is my code above for a simple example, after substitute the x to 2 using subs i need to find a way to place this "new" formula in a function, matlab identify a as a 1x1 sym

any suggestions?

Answer 1

[Walter Roberson]

Try matlabFunction()