How to draw a Karnaugh map for a logical expression with more than 4 variables

lingking

How to draw a Karnaugh map for a logical expression with more than 4 variables [Copy link]

As shown in the figure, the Karnaugh map given in the textbook basically has at most 4 variables. If you encounter a logic function with 5 or more variables, how should you draw the map? What is the way to simplify it?

gmchen

Draw multiple. Draw two 4x4 maps for 5 variables, with the corresponding 5th variable being 0 and 1 respectively, and then imagine these two 4x4 Karnaugh maps stacked on top of each other, and simplify in the same way. Similarly, you can draw four 4x4 maps for 6 variables. However, simplifying is already very difficult, and you need to have a good spatial imagination. For more than 6 variables, Karnaugh maps are usually not used for simplification.