Tensor Product According to Input (Dynamically)

Hello:

I am trying to use tensor product according to inout number d

How can I write this code better? I am asking that becuase if I have 100 for d I cant write if by hand I want to write more clever things with for but I dont know

function A = td(d)
sigma_x = [0,1;1,0];
if d ==2
   A = sigma_x;
if d ==4
    A = kron(sigma_x,sigma_x);
end
if d == 8
    A = kron(kron(sigma_x,sigma_x),sigma_x);
end
if d ==16
    A = kron(kron(kron(sigma_x,sigma_x),sigma_x),sigma_x);
end

Answer 1

[Sulaymon Eshkabilov]

If your variable sigma_x is 90 rotated eye matrix, then you can use

A = rot90(eye(d));

Good luck

[Gözde Üstün]

my variable first variable is :

0  1
1  0

my second variable is:

1   0
0  -1