不等式中蕴藏着丰富的数学思想和方法,本文列举其五种主要的思想,供读者品尝。一、数形结合的思想“数”与“形”是对立统一的,在研究数学问题时,常由“数”到“形”或由“形”到“数”。将数(量)与(图)形结合起来进行分析、研究、解决实际问题,能起到直观、简明、准确的作用。 Inequality contains a wealth of mathematical ideas and methods, this article lists its five main ideas for readers to taste. First, the combination of the idea of ​​“number” “number ” and “shape ” is the unity of opposites, in the study of mathematical problems, often from “number ” to “form ” or “form ” “number”. The number of (figure) and (figure) form combined analysis, research, solve practical problems, can play an intuitive, concise and accurate role.