MATLAB: How to use””\langle〈 and \rangle 〉 “” in matlab

symbols

the function is used to convert the binary sequence into 24 integers in which each one is produced by 8 binary bits.

bin2dec(char('0'+reshape(bits, 8, 24).'))

... but what does this have to do with the angle brackets?

MATLAB documentation tells you how to make functions. Like, to make your "f" function you'd do this:

function z = f(a, b)
if ~mod(a,b)
    z=0
else
    z=b-mod(a,b);
end

To call it, you'd do this:

a = Ns;
b = 8;
z = f(a, b)

A is 3-by-3. But i*dim can be 9 in the i=1:N loop or 21 in the i = (N+1):(2*N+1) loop. It doesn't have that many columns (9 or 21) - it has only 3.