title: binary excess notation
body: <p>i'm studying computer science and i can't figure something out of my own.</p>
  
  <p>There is this number : <code>-233</code> using 10 bit representation</p>
  
  <p>What i need to do is to represent with excess notation the number <code>(2^n-1)</code></p>
  
  <p>So, i came up with:</p>
  
  <pre><code>1 base 10 = 0000000001
  
  2^10-1 = 1000000000
  </code></pre>
  
  <p>1 base 10 in my notation = 1000000001</p>
  
  <p>So, my -256 is 0000000001 </p>
  
  <p>And my 255 is 1111111110</p>
  
  <p>What is the -233 number following this notation?</p>
  
  <p>The result on the book is <code>0 1 0 0 0 1 0 1 1 1</code></p>
  
  <p>My result: 0 0 0 0 0 1 0 1 1 1</p>
  
  <p>Hope you guys can help me.</p>