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对于数形结合思想,我国著名数学家华罗庚曾经这样描述:“数与形本相倚依,焉能分作两边飞。数缺形时少知觉,形少数时难入微。数形结合百般好,隔离分家万事非。几何代数统一体,永远联系莫分离。”数形结合思想作为高中阶段七大数学思想之一,每年都是高考的热点。在平时练习过程中,我们应该主要把握以下三个要点:一、理清限制约束条件是前提在使用数形结合解题前,应该先注意理清题目中的限制约束条件,限定范围,才可准确地解决问题。
For the idea of number and shape combination, Hua Luogeng, a famous mathematician in China, once described it as follows: “Numbers and shapes are dependent on each other, and you can divide them into two sides. When you are few, there is less consciousness, and when you are a few, it is difficult to understand. , Separation and separation of all things. Geometry and algebraic unity, will never be separated. "The combination of number and shape as one of the seven high school mathematics thoughts, each year is the college entrance examination hot spots. In the usual practice process, we should mainly grasp the following three points: First, to clarify restrictions on constraints is the premise Before using the number of combinations to solve problems, you should first pay attention to sort out the restrictions in the title constraints, limited scope, can be Accurately solve the problem.