逻辑函数的组合项化简法

The combined-item simplification for logic function

提出了逻辑函数的组合项化简法，它吸取了卡诺图化简法和列表化简法的优点，是一种全新的逻辑函数化简法．与代数化简法、卡诺图化简法和列表化简法相比，显得更加直接和简便．所谓组合项，即由几个最小项合并而成的项．

The combined－item simplification for logic function, which is a brand－new method with the advantages of both Karnaugh's map simplification and table simplification, is studied in the paper. The combined－items means the item composed from several simplest items and the combined－item simplification for logic function is a rather simple and convenient method. It merely needs looking up the tables using the combined－items, and has no restrichons on the number of variables. Increasing of number of variables only means prolonging the truth table.The combined－item simplification for logic function is more direct and easier than algebraic simplification, Karnaugh's map simplification and table simplification.