![]() Several of the parameters are shown with a bar over them. The expression includes seven products - based on parameter input - that are added together to produce a single binary value. The following function defines a basic Boolean expression that incorporates the function's four variables:į(A, B, C, D) = A̅BC̅D + ABC̅D̅ + ABC̅D + ABCD + ABCD̅ + AB̅CD + AB̅CD̅ The best way to understand how a K-map works is to see one in action, and the place to start is with a Boolean function. Using K-maps for functions with seven or more variables is extremely difficult - if not impossible. Although K-maps can be used for functions with five or six variables, the process is more difficult. ![]() A K-map can be thought of as a special version of a truth table that makes it easier to map out parameter values and arrive at a simplified Boolean expression.Ī K-map is best suited for functions with two to four variables. ![]() A Karnaugh map (K-map) is a visual method used to simplify the algebraic expressions in Boolean functions without having to resort to complex theorems or equation manipulations. ![]()
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