
[数] 递增函数
The steady error is an increasing function of the stiffness parameter if the source term is nonlinear.
当源项是解的非线形函数时,发现定常状态的误差是刚性参数的单调增加函数。
A new growth index is put forward with the introduction to a strictly monotone increasing function other than the logarithm to this function.
引进一类严格单调增函数,不对此函数取对数,提出一种新的增长指标。
In order to describe the random variability of comprehensive actions of rock mass on lining, an equivalent deviation increasing function is put forward.
为此提出围岩物性参数空间等效方差增大函数这一概念,用来反映岩体结构对衬砌综合作用的随机变异性。
The stu***s performed show it is a monotone increasing function of crepe effect and its value can be used as a quantitative index for crepe effect evaluation.
研究结果表明,它与绉效应呈单调递增函数关系,可作为绉效应的数量评定指标。
Tai-ji-quan is of great practical importance in modern society. The Tai-ji-quan action has also shown its increasing function in college students PE education.
太极拳在现代社会中具有其独特的实用价值,太极拳运动的开展也越来越显示出其在大学体育教学中的地位和价值。
在数学中,"increasing function"(递增函数)指的是自变量增大时函数值不减少的函数。根据严格性的不同,可分为两类:
若对任意 ( x_1 < x_2 ),均有: $$ f(x_1) < f(x_2) $$ 则称函数在区间上严格递增。例如:
这类函数的图像表现为持续上升的曲线,且任意两点的斜率均为正。
若对任意 ( x_1 < x_2 ),满足: $$ f(x_1) leq f(x_2) $$ 则称函数非严格递增。例如:
这类函数允许局部存在水平线段,但整体趋势不下降。
特征 | 严格递增 | 非严格递增 |
---|---|---|
定义 | ( f(x_1) < f(x_2) ) | ( f(x_1) leq f(x_2) ) |
导数条件(可导时) | ( f'(x) > 0 ) | ( f'(x) geq 0 ) |
图像示例 | ↗ 持续上升 | ↗ 或 → 水平 |
注意:部分文献可能将非严格递增函数称为"non-decreasing function"(非递减函数)以明确其允许相等的特性。具体使用时需结合上下文定义。
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