for loop with syms variable

I am trying to make a loop such that will generate c1=cos(th1) c2=cos(th2).....etc, how can I fix this?

syms th th1 th2 th3 th4 th5 th6
for N=1:6
    c(N)=cos(th(N));
    end

Answer 1

[madhan ravi]

% Newer versions
syms th [1, 6]
c = cos(th)

%Older versions
th = sym('th', [1, 6]);
syms(th)
c = cos(th)

[Tony Yu]

thanks for suggestion, but that only gives c =

[ cos(th1), cos(th2), cos(th3), cos(th4), cos(th5), cos(th6)]

[madhan ravi]

c = num2cell(cos(th))

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval