Matrix build: Switch/Case and For loop

I am attempting to code a 32X32 matrix and a 32X1 matrix using a switch inside of a for loop. I keep getting an error stating

 "Undefined function 'eq' for input arguments of type 'cell'."

When running the below stated code. Can anyone please point to what I am doing wrong? Thank you.

A = zeros(32,32);
C = zeros(32,1);

for i = 1:32;
    switch i
        case i == 1
            A(i,1) = -4;
            A(i,2) = 1;
            A(i,5) = 1;
            C(i) = -600;
        case i == {2,3}
            A(i,i-1) = 1;
            A(i,i+1) = 1;
            A(i,i+4) = 1;
            A(i,i) = -4;
            C(i) = -300;
        case i == 4
            A(i,3) = 2;
            A(i,4) = -4;
            A(i,8) = 1;
            C(i) = -300;
        case i == 29
            A(i,25) = 2;
            A(i,29) = -6;
            A(i,30) = 1;
            C(i) = -500;
        case i == 32
            A(i,28) = 2;
            A(i,31) = 2;
            A(i,32) = -6;
            C(i) = -200;
        case i == {5,9,13,17,21,25}
            A(i,i+1) = 1;
            A(i,i-4) = 1;
            A(i,i+4) = 1;
            A(i,i) = -4;
            C(i) = -300;
        case i == {6,7,10,11,14,15,18,19,22,23,26,27}
            A(i,i-1) = 1;
            A(i,i+1) = 1;
            A(i,i-4) = 1;
            A(i,i+4) = 1;
            A(i,i) = -4;
            C(i) = 0;
        case i == {8,12,16,20,24,28}
            A(i,i-1) = 2;
            A(i,i-4) = 1;
            A(i,i+4) = 1;
            A(i,i) = -4;
            C(i) = 0;
        case i == {30,31}
            A(i,i-1) = 1;
            A(i,i+1) = 1;
            A(i,i-4) = 2;
            A(i,i) = -6;
            C(i) = -200;
    end
end

Answer 1

[Azzi Abdelmalek]

Just write case {2,3}

i=2
switch i
      case 1
          A(i,1) = -4;
          A(i,2) = 1;
          A(i,5) = 1;
          C(i) = -600;
      case {2,3}
          A(i,i-1) = 1;
          A(i,i+1) = 1;
          A(i,i+4) = 1;
          A(i,i) = -4;
          C(i) = -300;
  end

[Thomas]

Thank you very much, fixed the problem