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Kmaps with dont care

  1. Oct 6, 2011 #1
    1. The problem statement, all variables and given/known data
    Question about dont cares in kmaps
    in a 16 cell box
    d 1 d 0
    d 1 1 1
    0 d 1 d
    0 0 0 0
    What do dont care stand for exactly? like when you do the circling of ones do you also include the D or you don't, even if the D are 1?
    thxs


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Oct 6, 2011 #2
    You may treat d as 1 or 0. You should do so based on what allows for optimally simplified logic expressions.
     
  4. Oct 6, 2011 #3
    o ok thxs
     
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