有人曾问一位艺术家,他是怎样雕刻出栩栩如生的人物的.艺术家回答说:“拿一块石头来,把多余的部分砍掉就是了.”这就是说,“法无定法”.数学推理也是如此,很难说用什么方法便能解决什么数学问题.但是,艺术家的创造虽无固定模式,他所用的工具却可以一一列举,每种工具也有一定的基本用法.解决数学问题虽无固定模式,但数学推理常用的 Someone once asked an artist how he carved a lifelike figure, and the artist replied: “Take a stone and cut it off.” That is to say, “the law of no law” Mathematical reasoning is also true, it is difficult to say what method can be used to solve any mathematical problems, but there is no fixed pattern of the artist’s creation, but he can use one of the tools listed, each tool also has some basic usage. Although there is no fixed pattern, but mathematical reasoning commonly used