Kmaps

A Karnaugh map or Kmap is a table, in which each cell contains a bit and represents a single row from an expression's truth table. Kmaps are an easy tool for simplifying expressions.

Here is how empty Kmaps for 2, 3, and 4-variable expressions look like:

A Kmap for an expression composed of 2 Boolean variables A and B.

A 2-variable expression Kmap. Based on this website.

A Kmap for an expression composed of 3 Boolean variables A, B, and C.

A 3-variable expression Kmap. Based on this website.

A Kmap for an expression composed of 4 Boolean variables A, B, C, and D.

A 4-variable expression Kmap. Based on this website.

These notes by Miriam Briskman are licensed under CC BY-NC 4.0 and based on sources.