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extrema n.extremum 的復數。

extremal

In this papery we discussed the the extremum of function of several variables , and generalized the result of paper [ 2 ] , then we give the method of solving the extrme value of n - component function using first class partial derivative 摘要討論了多元函數極值的問題,推廣了文獻[ 2 ]的結果,并給出了利用一階偏導數求多元函數極值的方法。

The conclusion that a set of extremum questions can not be solved by lagrange - multiplication is explained through analysising the extremum questions under linear target functions and linear constrained conditions 摘要通過對線性的目標函數在線性的約束條件下的極值問題的分析,得到這類極值問題一般是不能用拉格朗日乘數法求解。

The present paper briefly describes the basic principle of electromagnetic shift and shift - processing method of low - frequency filtering , and deals in detail with the technique for figuring out optimum extremum time t 摘要本文簡要介紹了電磁偏移的基本原理和低頻濾波的偏移處理方法,并詳細論述了最佳極值時刻t的求取方法。

Based on the speech produce model , we find the reason of periodicity disappearance and the extremum number increase by analysing the character of speech signal when the glottal closes 于是從語音產生模型入手,詳細的分析了聲門閉合時刻語音信號的性質,找到了濁音信號經過小波變換后周期性消失、極值點個數增多的原因。

On the basis of the 9 - month observational data from five representative aws in 2005 , daily extremum distributions of main meteorological elements were obtained by the statistical method 摘要選取山東有代表性的5個臺站2005年9個月的自動站資料進行統計,得出其主要氣象要素日極值在各時間點上的分布情況。

This paper discusses the statistical rule of maximum corrosive pit depth and determination method of extremum estimation for local corrosion depth , and presents a practical example of calculation 文章討論了管道最深點蝕孔深度的統計規律以及局部腐蝕深度最大極值估計值的確定方法,并給出了實際算例。

The bp neural network has the ability to solve many practical problems because of its strong mapping . however , it has slow convergence rate and is prone to fall into local extremum Bp神經網絡具有很強的映射能力,可以解決許多實際問題,但同時還存在著收斂速度慢,易陷于局部極小的缺點。

The main innovative contributions of this dissertation are as follows : firstly , three texture image classification algorithms based on the discrete wavelet frame modulus extrema are proposed 論文的主要創造性研究成果如下: 1 .提出三個基于離散小波框架模極值的紋理圖像分類算法。

The place of the anomalous extremum of apparent resistivity curve is related to the position , thickness , resistivity and occurrence of geologic bodies ahead of the tunnel 摘要在坑道電阻率超前探測工作中,視電阻率異常極值位置與異常體位置、厚度、電性以及產狀相關。

Find the critical number , point of inflection , relative extrema , increasing or decreasing interval , concave upward or downward interval of the function 找出此函數的端點,反曲點,相對極值,遞增或遞減區間,凹向上或凹向下的區間。

Distribution of relative extreme values and extremum times by arkov jump processes : upward type . , acta mathematica sinica , new seriers , vol 13 : 3 , 347 - 356 , 1997 “生滅與跳躍過程的積分型泛函及其應用“ , 97年清華大學基礎研究獎。

While for colored phase fluctuation , the number of extremum in the steady state distribution is changed from one to three directly 而色噪聲位相漲落情形下,定態分布函數的極值點由一個直接變為三個。

With the theory of quadratic form , this essay gives out another way to solve the extremum problems of multi - variable functions 摘要文章以二次型理論為依據,提出了解決多元函數極值問題的另一種方法。

A novel method for the radar full pulse data analysis , called the extremum sequence analysis method , is put forward 摘要針對脈沖雷達提出了一種新的雷達信號全脈沖數據分析算法極值序列分析法。

We analyze every kind of terms of extremum , and proceed the early integral calculus and analyze the boundary terms 分析了模型取極值的各種條件,對模型進行初積分處理并分析了邊界條件。

Spectral derivative is a simple and effective method to acquire the wavelengths of extremum points 光譜微分方法是一種簡單而有效的確定光譜曲線極值點波長位置的方法。

Several complementary computing dimension chain formulas of extremum method and probability method are deduced 推導了使用極值法、概率法計算尺寸鏈的補充公式。

The sufficient and necessary conditions of weak efficient solution for a class of vector extremum problems 關于一類向量極值問題弱有效解的充分必要條件

The maximum of quadratic funtion and the extremum of two variable function based on the possitive deficite property 二次型在求多元函數極值上的應用