1 1 vote Should we use Don't care terms while calculating POS expression? Digital Logic digital-logic canonical-normal-form k-map + – Jason 3.6k views answer comment Share Follow Print See 1 comment 1 1 comment reply Warrior_19 commented Nov 19, 2018 reply Follow flag Either in SOP or POS, if including dont care CELLS helps in minimizing an expression, you can use them. But,never include dont cares which adds a term unnecessarily. So we should be little cautious while picking them 1 1 replyShare Please log in or register to add a comment.
2 2 votes yes dont care is use in both sop as well as pos abhishekmehta4u answered Mar 21, 2018 abhishekmehta4u comment Share Follow See 1 comment 1 1 comment reply Chandrabhan Vishwa 1 commented Mar 21, 2018 reply Follow flag yes uses 0 0 replyShare Please log in or register to add a comment.
1 1 vote dont care should be used only when they help in maximizing the subcube size(i.e reducing expression size on minimizing) sonveer tomar 1 answered Mar 21, 2018 sonveer tomar 1 comment Share Follow See all 2 Comments 2 2 Comments reply Jason commented Mar 21, 2018 reply Follow flag So, here should it be $(a'+c'+d)$ or $(c+d)$ for the bottom right two zeros? 0 0 replyShare pranay562 commented Dec 21, 2018 reply Follow flag @Jason (c′+d) 0 0 replyShare Please log in or register to add a comment.
