title: ICU Unicode Normal vs Fullwidth
body: <p>I am somewhat new to unicode and unicode strings. I'm trying to determine the difference between "fullwidth" symbol and a normal one.</p>
  
  <p>Take these two for example:</p>
  
  <p>Normal: <a href="http://www.fileformat.info/info/unicode/char/20a9/index.htm" rel="nofollow noreferrer">http://www.fileformat.info/info/unicode/char/20a9/index.htm</a></p>
  
  <p>Fullwidth: <a href="http://www.fileformat.info/info/unicode/char/ffe6/index.htm" rel="nofollow noreferrer">http://www.fileformat.info/info/unicode/char/ffe6/index.htm</a></p>
  
  <p>I notice that the fullwidth is defined as U+20A9 and coincidentally 20A9 is the normal one. So what is the value of U?</p>
  
  <p>When using libraries like ICU is there a way to specify always return normal versus full?</p>
  
  <p>Thanks,</p>