微分法则,Diffe

Ito differential ruleIto微分法则
1.The program package presented can be used in co-transmitting Stratonovich SDE to Ito SDE, obtaining stochastic differential equation of a stochastic variable vector function under Ito differential rule, and obtaining the FPK equation of a stochastic variable vector.将计算机代数的思想应用在随机微分方程理论中,借助数学软件系统Mathematica编制了运算程序包,它可以完成不同意义下的随机微分方程之间的转化,也可按Ito微分法则对随机变量函数进行微分,推导其转移概率密度函数的FPK方程。
3)inverse function differential principle反函数微分法则
1.This article explicitly expressed converse theorem of the inverse function differential principle,Based on this theorem,the author proposed one kind of integration,then gave some examples.本文明确表达了反函数微分法则的逆定理,基于此定理提出一种积分法,并举例说明了其运用方法。
4)GDQR广义微分求积法则
1.A generalized differential quadrature rule (GDQR) and the differential quadrature method (DQM) were applied to obtain the nonlinear static solution of an immovably simply supported beam.采用微分求积法(DifferentialQuadratureMethod)和广义微分求积法则(GeneralizedDifferentialQuadratureRule)分析了轴力影响不可忽略时简支梁的非线性静力问题,求出了问题的数值解。
5)It's differentiation ruleIt微分规则
6)microcanonical distribution微正则分布
1.The initial microcanonical distribution is modified by using eleven different ionization thresholds of electrons in tht target.基于使用多个系统总能量U值,对初始电子的微正则分布进行了优化,使其更接近于量子力学的径向空间分布。
2.We take them as examples for listing the microcanonical distribution,the canonical distribution and thegrand canonical distribution for illustrating the idea.本文根据刘维方程讨论了经典系统和量子系统处于平衡态时分布函数和统计算符应当具有的普遍函数形式,并以常用的微正则分布、正则分布和巨正则分布予以印证。
延伸阅读

“3σ”法则“3σ”法则' three-sigma ' rule  次.试验者有时正是基于这一事实,在某些概率论与数理统计问题中,把事件{{X一“!)3a}视为实际不可能的,从而把事件{}X一aI<3。}视为实际必然的.在这种情形下,称试验者遵循“3a”法则.“36”法则[‘加℃e刁,.’n山;‘印exc~’np姗-JIO〕 一种经验法则.根据这种法则,在概率论和数理统计中,把“正态分布(nolll长d distribution)随机变量的值对其数学期望(姗也翩曲tical ex因血tion)的偏差不大于3倍标准差(s协n(纽记由访以沁们)”视为实际不可能事件. 设X是服从正态分布N(a,尹)的随机变量;对于任意k>0,有 p{}X一a}<人a}=2。(k)一l,其中小(·)是标准正态分布函数;特别地,对于k=3,有 p{a一3。