title: What is NaNi, and how is it different fron NaN?
body: <p>I am writing a function in Matlab. There should be something wrong. The output of my function is a vector. When I see every element of my vector I see <code>NaN</code> (Not a Number) and <code>NaNi</code>, that really I don´t Know?</p>
  
  <p>Does anybody know what is <code>NaNi?</code></p>