sum equation 中文意思是什麼
sum equation
解釋
累加方程-
A experienced equation which is summarized by many experiments is used to determine the number of mesosphere nerve cell and a sort of new square - sum function of errors is adopted. its characteristic is that weight errors of possible exceptional point is less. accordingly, the effect of errors of possible exceptional point is reduced, which make actual function relation simulation easier
本系統針對bp演算法的局限性，給出了一種優化的bp演算法，採用經過大量實驗總結出的經驗公式來確定隱層神經元的個數，並選取了一種新的誤差平方和函數，該函數的特點是對一些可能的異常點的誤差權值設計的較小，從而降低了異常值誤差帶來的影響，便於模擬出真實的函數關系。 -
In the second section of chapter 2, the fact that the essential interest rates of all nodes differ from each other is discussed, a non - homogeneous differential equation model of interest rate - amount of circulating fund is established, and it is proved that the sum of the weighted interest rates of each node in the financial network still remains a constant and that the difference of the instant interest rates between two nodes will finally approach the difference between their basic interest rates. in the third section of chapter 2, the differential equation model of interest rate - amount of circulating fund in an open system is studied, the laws of changes of interest rate are taken into account when fund is injected into or withdrawn from the node or when fund is injected into the network or withdrawn from the network, and the stability of equilibrium solution is proved based upon lyapunov stability theory. in the last, the equation model of interest rate - amount of circulating fund in the financial network with time delay is studied, and a necessary and sufficient condition for the existence of periodic solution is obtained to the interest rate - amount of circulating fund equation with delay
本文第二章首先建立了封閉系統的利率?流通量微分方程模型，證明了各結點利率加權和為常數即金融市場利率均衡原理，以及各結點利率極限為整個網路平均利率；其次在各結點基本利率不相同的情況下，建立了非齊次利率?流通量微分方程模型，證明了金融網路各結點利率加權和仍是一個常數，並證明了各結點兩兩之間的即時利率之差最終將穩定地趨于其基本利率差；此外，還研究了開放金融網路利率?流通量方程模型，考慮了結點自身追加資金和提走資金的情形以及網路外部注入資金和向外部轉移資金情形下的利率變化規律，用lyapunov穩定性理論證明了模型均衡解的穩定性；最後，還研究了具有時滯的金融網路利率?流通量方程模型，並給出了具有時滯金融網路的利率流通量方程具有周期解的充要條件。 -
Using differential equation to get the sum of ordinary series with function term
用常微分方程求幾類常見的函數項級數的和 -
The material ways are to model the honeycomb wall as an impredence surface, to express the infinite honeycomb by using periodic green ' s function, and using method of moment to establish the mathematic model, in applying the methods of moments, we choose the roof function as basic function and choose the razor function as test function ; by equating the incident field to sum of the scattering field and impledance field ; we will set up the integral equation for the surface current, solving it by mom equation. then gain it ' s reflected coefficient ' s numerical result. and we propose first the definition of the equivalent electromagnetic parameters and present a method to calculate them from the gained reflection coefficient
具體方法就是將浸漬吸收劑的蜂窩壁用表面阻抗表示，將無限大的周期結構的電場用周期格林函數來表示，選取有耗蜂窩結構中具有代表性的基本計算單元應用矩量法建立數學模型，在運用矩量法時用屋頂函數作為基函數，刀片函數作為檢驗函數，根據蜂窩壁表面電場必須滿足入射電場等於散射電場和阻抗電場之和的規律，推導表面電場積分方程，求解蜂窩結構的表面電流，利用蜂窩的周期規律得到無限大均勻周期陣列的散射電場。 -
The third chapter of the thesis makes a study of the equation of interest rate - amount, of circulating fund on limited occasions of sudden events, proves that the network average interest rates of different time periods are also different and change with the impulsive conditions, and makes clear the relationship between the network average interest rates of two neighboring time periods. as far as every node in the network is concerned, its instant interest rate will tend to, in the end, at the sum of the basic interest rate of every node and the growth rate of the network
本文第三章研究了出現有限次突發事件時的利率?流通量方程，證明了不同時間段的網路平均利率也不相同，並且，隨脈沖條件的變化而變化，同時給出了相鄰兩個時間段網路平均利率之間的關系，就網路中每個結點而言，其即時利率最終穩定於結點基本利率與網路增長率之和。 -
Professor todd cochrane introduced a sum analogous to the dedekind sum, where a is defined by the equation aa = 1 mod k, denotes the summation over all a such that ( a, fc ) = 1
關于s （ h ， k ）及s （ h ， n ， k ）的性質，許多學者作了廣泛的研究。美國解析數論專家toddcochrane介紹了一個與dedekind和相似的和如下：這里表示對所有的與k互素的求和。 -
A continuous equation, three momentum equations are set up for each phase, and the algebraic equation with sum of volume rate amount to one is set up in this model
該模型針對每一相都建立了一個連續性方程、三個動量方程，並建立了一個體積率和等於1的代數方程。 -
( 3 ) by means of expanding the aperture function into a finite sum of complex gaussian functions, the propagation of fgbs through a paraxial optical abcd system with hard - edged aperture is studied, and the approximate closed - form equations of apertured fgbs are obtained for the first time. the results obtained by using the approximate closed - form equation and collins formula are compared, and the condition under which the approximate closed - form equation is applicable is analyzed
（ 3 ）利用光闌函數的復高斯函數展開法對截斷平頂高斯光束的傳輸作了研究，首次得到了截斷平頂高斯光束在近軸abcd光學系統中傳輸時的近似解析傳輸公式，通過比較用近似傳物公式和colhns公式直接數值積分所得的結果，得出了近似公式的適用范圍。 -
Based on study of previous models for production rate prediction, this paper presents a newly established differential equation of accuniulated production increase rate, and works out the practicable equation used for prediction of oilfield annual production sum, accumulated production and recoverable reserve
在研究以往產量預測模型的基礎上，提出了一種新的油氣田累積產量增長率微分方程，並由該方程得到了預測油氣田年產量、累積產量和可采儲量的具體方程。 -
When we solve irregular problem, a trial solution of the differential equation is written as a sum of two parts : a radial basis function network satisfies the boundary conditions and svr is trained for the inner points
在求解不規則邊界邊值問題時，演算法基於兩種不同學習方法的協作：徑向基函數學習網路（簡稱rbf ）用以滿足邊值條件（ bc ' s ） ，支持向量機回歸用於逼近域內元素。 -
The weighted number of solutions of equation, r ( b ), is expressed as the sum of a integral on [ 0, 1 ] and a remainder term. using the circle method, the integral on the interval [ 0, 1 ] is divided into the integrals on major arcs and minor arcs respectively, j and j. the section 3 gives a transformation for sj ( a ) and simplifies /
把三次方程的加權解個數r （ b ）表示為[ 0 ， 1 ]上的積分加上余項，然後利用圓法，把區間[ 0 ， 1 ）上的積分變成優弧和劣弧的積分和第三節，給出s _ i （ ）的一個變換，並化簡把的主項被分成m _ 1 ， m _ 2和m _ 3 -
Results a sum of useful data and regressive equation were obtained
結果獲得大量的分析數據及回歸方程。 -
Application of differential equation sum on a sort of series of functions
一類函數項級數的求和 -
The o. z. equation describes the relation between the direct and total correlation functions, and this relation can be interpreted that the total correlation function of two particles is the sum of direct correlation and indirect correlation transferred by all other particles
）方程從直觀上是很容易理解的，它表示了系統中任意兩個粒子間的總關聯是它們之間的直接關聯和所有間接關聯的總和。 -
The paper considers a risk model with negative risk sum perturbed by diffusion. the integro - differential equation and the explicit expression for the ruin probability are derived
摘要引進帶干擾負風險和模型。給出該模型的破產概率所滿足的積分微分方程及解析式。 -
This method can guarantee the solution matrix of sylvester equation to be inverse and the sum of the input gain norm and the observer gain norm is the minimum. for the linear systems with unknown parameters, we identify the parameters using hopfield network, then design the observers using the identified parameters, the exponential convergence of adaptive observer is also proved. for the linear time - varying systems, a new network to solve the time - varying sylvester equation is proposed, we analysis it ' s convergence and robustness, then, deign the linear time - varying observer using this network model, and we discuss the convergence of the observer and ruboustness to unknown match parameters
同時保證了sylvester方程的解矩陣的可逆性和觀測器的增益矩陣與輸入矩陣范數的和最小；在設計線性時不變自適應觀測器時，首先利用系統的輸入、輸出數據設計一個hopfield網路參數估計器，進一步設計狀態觀測器，證明了參數估計器和狀態觀測器的指數收斂性；為了仍然從神經優化計算的角度設計線性時變系統的狀態觀測器，最後介紹了一種求解時變sylvester矩陣方程的神經網路模型，分析了它的收斂性和魯棒性，然後利用該網路設計時變狀態觀測器，進一步討論該觀測器的在系統存在未建模不確定和外部噪聲時的魯棒性；最後給出了一種基於分離性原理和hopfield網路觀測器的狀態反饋閉環系統的結構，分析了該閉環系統的特點；對于每一種設計方法都給出了相應的數值模擬例子來進一步表明所提方法的可行性和有效性。
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