Based on the operation nature of elastic function, a diagnostic method of derivation of geometric convex function is provided, and the conclusion is used to prove geometric convex nature of basic elementary functions.
利用弹性函数的运算性质,给出几何凸函数的导数判别法,并用所给结论证明了基本初等函数的几何凸性。
The basic elementary functions represented by functional equations were obtained by using the methods of solving ordinary differential equations and initial value probe.
用求解常微分方程及其初值问题的方法得到由函数方程表示的基本初等函数。
This paper,using the method of differential equation,proves some characters properties of basic elementary function,and then concludes an equivalent representation about basic elementary function.
运用微积分的方法,对基本初等函数的若干特征性质进行了证明,从而给出了基本初等函数的等价表征。
Based on the analysis of the geometrical significance of basic elementary matrixes,the authors put forward some suggestions of teaching of matrixes and transformations in Senior School New mathematics curriculum.
表示"交换某两行的位置"、"把某一行乘以一个非零数"、"把某一行的k倍加到另一行上"的3种基本初等变换的矩阵分别称为基本初等矩阵(1)、(2)、(3)。
In this paper,a definition of basic elementary matrix is given and the conclusion is drawn that any matrix can be resolved into limited basic primary matrix product.
给出基本初等矩阵的定义,得出任何方阵都可分解为有限个基本初等矩阵的乘积的结论。