MATLAB: How to increase the precision of the y axis

Question

Hi,

I've got the following plots and I want to increase the precision on the Y-axis. I want to see more values on the axis. Thanks!

Vi=A.*sin(2.*pi.*f.*t);
        axes(handles.axes1);
        plot(t,Vi,'color','red','LineWidth',2);
        grid on;
        title('Input signal [Vi]','Fontsize',15);
        xlabel('time [ms]');
        ylabel('Amplitude [V]');

Answer 1

yticks(-5:5)