The Karnaugh Map simplifies the  Boolean expressions. A Karnaugh Map is built in the form of an array. Adjacent cells of the array are grouped together for the simplification of an expression.Â
KARNAUGH MAP OF TWO VARIABLES
A
B
C
0
0
0
0
1
1
1
0
2
1
1
3
This truth table can be expressed in simple karnaugh map as follows;
B
A
Â
0
1
0
0
1
1
2
3
Â
Â
Â
KARNAUGH MAP OF THREE VARIABLES
A
B
C
D
0
0
0
0
0
0
1
1
0
1
0
2
0
1
1
3
1
0
0
4
1
0
1
5
1
1
0
6
1
1
1
7
This truth table can be expressed in simple karnaugh map as follows;
BC
A
Â
00
01
10
11
0
0
1
2
3
1
4
5
6
7
Â
Â
Â
Â
Â
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