作图在数学中尤为重要,函数的图象和性质关系密切。借助图形的性质可以将许多抽象的数学概念和数量关系形象化、简单化,给人以直观的启示,可让理论性强的文章图文并茂,有助于理解定义,说明定理和解释公式等。主要讲述如何利用函数的形态作出较为复杂的函数图象。 Mapping is particularly important in mathematics, the image and the nature of the function is closely related. With the nature of graphics, many abstract mathematical concepts and quantitative relations can be visualized and simplified, giving an intuitive enlightenment, allowing theoretical articles to be illustrated and illustrated, helping to understand definitions, explaining theorems, and formulating explanations. Mainly about how to use the form of the function to make a more complex function of the image.