The Meaning of Null

I use variations of null as my handle throughout the Internet, as it has a number of meanings which relate to my life. These meanings include:

  1. [Linear Algebra] The nullspace of a matrix A is the set of all vectors x for which Ax = 0.
  2. [Programming] The word null appears often in computer programming, from null pointers to null characters and strings, to nullary functions, etc.
  3. [Hypothesis Testing] The default hypothesis is called the null hypothesis. Hypothesis testing is part of the communications field of electrical engineering.
  4. In many contexts null means zero, which produces the color black when using the RGB color model (black is my favorite color).
  5. I am a Star Wars fan who enjoys the Republic Commando book series, which features the Null ARC clone troopers.

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