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在解答某些数学问题时,有时会遇到多种情况,需要对各种情况加以分类,并逐类求解,然后综合得解,这就是分类讨论法。分类讨论是一种逻辑方法,是一种重要的数学思想,同时也是一种重要的解题策略,有关分类讨论思想的数学问题具有明显的逻辑性、综合性、探索性,能训练人的思维条理性和概括性,所以在高考试题中占有重要的位置。但是,分类讨论一般过程较为繁琐,且容易在完备性上造成疏漏。江苏省高考数学有些填空题
In solving some mathematical problems, sometimes encounter a variety of situations, need to be classified in various situations, and class by solution, and then comprehensive solution, which is the classification of discussion. Category discussion is a kind of logic method, which is an important mathematical thought as well as an important strategy for solving problems. The mathematical problems concerning classification and discussion are obviously logical, comprehensive and exploratory and can train people’s thinking Reasonable and general, so in the entrance examination occupies an important position. However, the general discussion of the classification of the more complicated, and easy to omission on the completeness. Some college entrance examination math problems in Jiangsu Province