# Can we Group 3 ones in K-map?

## Can we Group 3 ones in K-map?

K-map group rules Not any group of adjacent ones can form a valid group. For example, you might have been tempted to group together the three 1’s on the bottom row of the previous example. But we can’t do that, because there wouldn’t be a single AND term that would correspond to those three 1’s.

## How do I create a group in K-map?

1. Groups may not include any cell containing a zero.
2. Groups may be horizontal or vertical, but not diagonal.
3. Groups must contain 1, 2, 4, 8, or in general 2n cells.
4. Each group should be as large as possible.
5. Each cell containing a one must be in at least one group.
6. Groups may overlap.
7. Groups may wrap around the table.

What are the limitations of K-map?

The disadvantage of k map :

• It is not suitable for computer reduction.
• It is not suitable when the number of variables involved exceed four.
• Care must be taken to field in every cell with the relevant entry, such as a 0, 1 (or) don’t care terms.

### What is alternative method of K-map?

The K-map method is used for expressions containing 2, 3, 4, and 5 variables. For a higher number of variables, there is another method used for simplification called the Quine-McClusky method. In K-map, the number of cells is similar to the total number of variable input combinations.

Karnaugh Maps or K-maps is one among such simplification technique, introduced by Maurice Karnaugh in 1953, which is graphical in nature. This method of minimizing the logical expressions is most suitable when the number of variables involved is less than or equal to four.

What is the most suitable statement about K-maps?

Which statement below best describes a Karnaugh map? Explanation: K-map is simply a rearranged truth table. It is a pictorial representation of truth table having a specific number of cells or squares, where each cell represents a Maxterm or a Minterm. 2.

## What are the types of K-map?

Now, let us discuss about the K-Maps for 2 to 5 variables one by one.

• 2 Variable K-Map. The number of cells in 2 variable K-map is four, since the number of variables is two.
• 3 Variable K-Map. The number of cells in 3 variable K-map is eight, since the number of variables is three.
• 4 Variable K-Map.
• 5 Variable K-Map.