title: DDA algorithm confusion......!
body: <p>I was studying a book explaining DDA algorithm and got stuck at a point .According to the rule the points should be rounded up so here in this case It should be (4,6) at the place of (4,5) isn't it .Check the picture below I've encircled the points I feel incorrect in the book ,so Am I taking it wrong or the book got a misprint here ?
  <img src="https://i.stack.imgur.com/2XwCr.jpg" alt="enter image description here"></p>