for i=1:N-1 x(i+1)=x(i)+vx*T; y(i+1)=y(i)+vy*T; z(i+1)=z(i)+vz*T; end

This MATLAB code snippet uses a for loop to update the values of the arrays x, y, and z for N-1 iterations. Within each iteration, the values of x, y, and z are updated using their previous values and the product of their respective velocities and time (T). The updated values are stored in the arrays x(i+1), y(i+1), and z(i+1) for the next iteration. This code assumes that the variables x, y, z, vx, vy, vz, and T have been previously defined and that N is the total number of iterations desired.