Why IN K-map has transition states like 00,01,11,10 ??.why not like 00,01,10,11 ?

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Ashik Ghona

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Why IN K-map has transition states like 00,01,11,10 ??.why not like 00,01,10,11 ?
 

because groupings are next to each other !A : 00 01. B : 01 11. A : 11 10 !B : 10 00

instead of
!A : 00 01, A xor B :01 10, A : 10 11, A xnor B : 11 00
 

That is fine.but what is the advantage.It's ok that it's gray code sequence but the question is why we are following that sequence to reduce expression ?
 

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