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084f2db8c6 Python Implementation by Robert Dick. 234 . edit .5DSeealso"> See also. At this point, one can start combining minterms with other minterms. If two terms vary by only a single digit changing, that digit can be replaced with a dash indicating that the digit doesn't matter. Contents 1 Contents edit.5DComplexity">2  Complexity edit.5DExample">3  Example edit.5DStep1:findingprimeimplicants">3.1  Step 1: finding prime implicants edit.5DStep2:primeimplicantchart">3.2  Step 2: prime implicant chart edit.5DSeealso">4  See also edit.5DReferences">5  References edit.5DExternallinks">6  External links Contents [hide] 1 Complexity 2 Example 2.1 Step 1: finding prime implicants 2.2 Step 2: prime implicant chart 3 See also 4 References 5 External links . description The requested resource is not available. Example of Petrick's method (copied from Following is the function we want to reduce:. Boolean algebra (logic) Circuit minimization Karnaugh map Espresso heuristic minimization program Petrick's Method Willard Van Orman Quine Buchberger's algorithm (analogous algorithm for algebraic geometry) .
Reduce the prime implicant chart by eliminating the essential prime implicant rows and the corresponding columns. (K+L)(K+M)(L+N)(M+P)(N+Q)(P+Q) . To determine the minimum solutions, first find those terms which contain a minimum number of prime implicants. Although more practical than Karnaugh mapping when dealing with more than four variables, the Quine–McCluskey algorithm also has a limited range of use since the problem it solves is NP-hard: the runtime of the Quine–McCluskey algorithm grows exponentially with the number of variables. QCA an open source, R based implementation used in the social sciences, by Adrian Dua A series of two articles describing the algorithm(s) implemented in R: first article and second article.  Prime Implicant Simplification Using Petricks Method . Apache Tomcat/7.0.35.