if it is not.This topic expands to complex numbers through the number field,sorts outthe changes in the properties of some elementary functions,and compares the differencesand conn...

AbstractRational application of structural method and reverse thinking to solvemathematical problems often results in twice the result with half the effort.Combining the constructi...

AbstractAs a special subject,mathematics is characterized by its high abstractness,rigorous logic and wide application.The relationship between 'number'and 'form',the two major obj...

目录1引言.......42数形结合思想在中学数学解题中的应用.·：2.1将代数问题几何化...…分2.1.1利用二次函数图像解决最值问题52.1.2利用几何图形证明数学公式2.1.3利用几何图形求解集合问题..·6...

AbstractThere are a lot of mathematical problems in marketing.Studying andsummarizing these mathematical problems and the mathematical knowledge used tosolve them can make us reali...

AbstractCauchy-Schwartz Inequality is one of the most important inequalities in mathematicalanalysis,which is widely used in many different fields.In this paper,several commonexpre...

The application of the combination of number and shape in solving problemsAbstract Mathematics is a science that studies the relationship between numbers and spatial forms.The idea...

目录引宫…11.问题的提出…1.1选题目的和意义…11.1.1选题目的.11.1.2选题意义…1.2己有研究综述........11.2.1国外已有研究11.2.2国内己有研究1.3解决问题的基本方法.。.22.研究过程…。32.1三...

这种方法即严谨简单，准确率高，又方便记录、推理、记忆和表达。在中学物理解题过程里这种方法被全面地运用。(一)代数方法的运用代数分析法运用首先，常用于建立物理辅助方程与规律方程，以此确...

AbstractUnder the rapid economic growth,the inventory has a direct impact on theoperation and profitability of food enterprises.However,the inventory managementcapacity of various ...