How to plot dots?

I know there has been asked similar questions, but they did not help me. I am relatively new to Matlab. I have got the following graphs and want to plot dots. The first dot should be at -5,10m, that is the following equation:

    x10 = 1/2 * dx10^2/g;    % distance x at v=-10m/s

The second dot should be at dx = -10m/s How can I add these fixed dots to my graph? And is it possible to stop the animation of the moving dots, when they reached dx = -10 m/s?

My complete code is attached. :-)

Answer 1

[madhan ravi]

i=1;
'on'
while  dxBall(i) >= -10
    % update point & text for ball 1
    plot(tball(i),xBall(i),'o')
    hold on
    set(hLine1, 'XData', tball(i), 'YData',xBall(i))
    set(hTxt1, 'Position', [tball(i) xBall(i)], ...
        'String', sprintf('%.3f,%3f)',[tball(i) xBall(i)]))
    % ... and the same for ball 2
    set(hLine2, 'XData', tball(i), 'YData',dxBall(i))
    set(hTxt2, 'Position', [tball(i) dxBall(i)], ...
        'String', sprintf('%.3f,%3f)',[tball(i) dxBall(i)]))
    drawnow                                  % force refresh
    pause(DELAY)                             % slow down animation

      i = rem(i+1,length(tball))+1;            % circular increment

      if ~ishandle(hLine1), break; end         % in case you close the figure
  end
  'off'

[madhan ravi]

just add this part at the end