title: How to create Countdown with 10th of a second?
body: <p>HI I have already created a countdown in second, lets say 10 second, but I want to make it more precise </p>
  
  <p>to 10.0 and display it on a label, how do it do that?  Thanks in advance</p>
  
  <p>This is what I have now for the "second" countdown</p>
  
  <p>my NSTimer</p>
  
  <pre><code>counterSecond = 10
  NSTimer timer1 = [NSTimer scheduledTimerWithTimeInterval : 1
      Target:self selector:@selector (countLabel) userInfo:nil repeats:YES];
  
  
  
  -(void)countLabel:
  counterSecond --;
  
  self.timerLabel.text = [NSString stringWithFormat @"%d", counterSecond];
  </code></pre>