Confusion Understanding MATLAB ''PLOT'' command?

Question

We know digital computer cannot deal with continuous time signals directly. But then how MATLAB "plot" command works? Does that uses interpolation techniques

Below is link of a MATLAB central question which is like this same issue

https://www.mathworks.com/matlabcentral/answers/512043-matlab-deals-only-with-discrete-signals

Answer 1

plot(x,y) simply plots a straight line of Y vs X with no interpolation. Do not confuse the visualization of a straight line on your screen with the actual data in x(:) and y(:) . Using plot(x,y,'o') , for example, would plot the points only.