order of approximation 中文意思是什麼

order of approximation 解釋
逼近的階
  • order : n 1 次序，順序；整齊；（社會）秩序，治安；狀況，常態；健康狀態；條理；會場秩序；議事程序，日程；...
  • of : OF ＝Old French 古法語。
  • approximation : n. 1. 接近；近似。2. 【數學】近似值。3. 概算，略計。
  1. This paper starts with interrogatory with capm ; analyzes the most basic risk concept, the risk expression method ; clarify the concept of systematic risk with idiosyncratic risk ; questions about marketing portfolio, diversification investment. then, we accept the capm as a reasonable first order approximation

    本文的思路是先破后立，將研究的起點放在對capm的質疑上，從分析最基本的風險概念、風險的表示方法入手，層層抽絲撥繭，對系統性風險與非系統性風險的劃分、市場組合、組合投資等概念提出疑問。
  2. A monotone approximation for a prey - predator system of first order

    被捕食系統的單調方法
  3. The first order weakly - guiding approximation for the eigenvalue equation of hybrid modes in a step - index optical fiber

    階躍光纖中混合模式特徵方程的一階弱導近似
  4. Abstract : in this paper a new identification model constructed by neural networks with modified inputs and stable filters is presented for continuous time nonlinear systems in order to reduce the inherent network approximation errors. an adaptive law with projection algorithm is employed to adjust the parameters of networks. under certain conditions, convergence of the identification error is proved

    文摘:在用神經網路進行系統建模時，建模誤差的存在是難免的.為了減小這種誤差，本文對連續時間非線性系統提出了一種新的神經網路辨識模型，它是由帶有輸入修正的神經網路和穩定濾波器組合而成.文中給出了權值的學習演算法，即權值是根據辨識誤差的投影演算法來改變，證明了在一定條件下辨識誤差的收斂性
  5. In soft - photon approximation, the average excitation energy only appears in the first and second order terms of field frequency

    在軟光子近似下，平均激發能僅出現在光場頻率的一階和二階項上。
  6. Secondly, the effectiveness and limitation of the classical perturbation, such as the method of multiple scales and the poincare - lindstedt method, are discussed in detail through a duffing oscillator with delayed velocity feedback. it is shown that the two perturbation methods are effective only in solving the approximate solution of the first two orders. an ambiguity or paradox will be encountered when they are used to seeking for the third or higher order approximation of solution

    其次，以一具有時滯速度反饋的duffing系統為例，研究了經典攝動法如多尺度法， poincar - lindstedt法等在求解時滯微分方程級數解時的適用性和局限性問題，指出利用這些方法只能有效求得系統的前兩階近似解，而在求系統的三次以上近似解時會出現矛盾或二義性。
  7. In order to improve the control performance of the closed - loop system, the adaptive compensation term of the approximation error is introduced

    為改善控制系統的性能，引入逼近誤差的自適應補償項。
  8. The obtained results in the paper are as follows : ( 1 ) the expansion of fourier series of orthogonal trigonometric polynomial for conditional mathematical expectation and function of random variable ; ( 2 ) the best approximation of trigonometric polynomial about another random variable for function of a random variable ; ( 3 ) the best approximation order of trigonometric polynomial for function of random variable

    摘要獲得了如下結果： （ 1 ）條件數學期望及隨機變量函數的三角多項式級數表達； （ 2 ）一個隨機變量關于另一個隨機變量的三角多項式的最佳逼近； （ 3 ）隨機變量函數被隨機變量三角多項式最佳逼近的階。
  9. Estimation of approximation order of lagrange interpolation polynomial after revised

    插值多項式的收斂階的估計
  10. In connection with the researches carried out in our laboratory, the description is concentrated on the high accurate four - component relativistic density functional methods with relativistic effects taken into account strictly, and the two - component or scalar relativistic density functional methods with relativistic effects considered approximately, involving the zero - order regular approximation ( zora ) method and its improved variants, the singularity excluded approximate expansion ( seax ) method, and the jointed two component - scalar relativistic ( or non - relativistic ) approach applicable to the calculations of large systems locally containing heavy elements

    結合本實驗室的研究工作，重點介紹嚴格處理相對論效應的四分量相對論密度泛函計算方法和近似處理相對論效應的兩分量和標量相對論密度泛函計算方法，包括零級規則展開近似（ zora ）方法及其改進和排除奇點的近似展開（ seax ）方法，以及適合處理局部包含重元素大體系的接合兩分量標量相對論（或非相對論）計算方法。
  11. Approximation order of scale function about m - band multi - wavelet

    進制多小波尺度函數的逼近階
  12. In addition, we formulated measures of ga - hardness for gas with real - valued encoding, and advanced the method of the first order function approximation

    對實數編碼遺傳演算法困難度的測試方法進行了分析，提出了一階函數逼近測試法。
  13. Then choosing suitable transform matrix, and applying tst to it, the satisfactory approximation order of the multi - scaling vector was achieved

    選擇適當的變換矩陣，對尺度向量進行雙尺度相似變換，可以使其具有滿意的逼近階。
  14. The orthogonal quasi - interpolation filter preserving approximation order designed by hardin and roach maintain the orthogonality and approximation order of central filter bank and give a proper direction in the design of prefilter

    Hardin和roach設計的具有逼近階的正交擬插值預濾波器保持了中心濾波器組的正交性和逼近階，為預濾波器的設計指出了一條正確的方向。
  15. Condition of approximation order for m - band multiscaling functions in frequency domain

    帶多尺度函數逼近階的頻域條件
  16. This paper investigates construction of orthogonal multiwavelets and a condition for approximation order of m - band multiscaling functions in frequency domain, introduces m - band scale similarity transformation ( mst ). one can increase the approximation order of multiscaling function with help of mst

    本論文研究了正交多小波的構造， m帶多尺度函數的逼近階頻域條件，引入m帶尺度相似變換（ mst ）並利用其提高m帶多尺度函數的逼近階。
  17. The stress and local stability constraints are transformed into movable lower bounds of sizes. an inverse variable xt = ? is inducted, and the objective function is expanded as second order taylor approximation while the displacement constriction is expanded as first order taylor approximation. the lemke algorithm is used to get the final design result

    把復雜的應力約束和局部穩定約束轉化為動態尺寸約束，引入倒變量x _ i 1 / a _ i將目標函數展開為二階近似，將位移約束用莫爾積分化為一階近似，用對偶規劃方法將原問題化為等價的二次規劃問題，調用lemke演算法，求得最優設計結果。
  18. A kind of operator of trigonometric interpolation polynomials with bivariate product was constructed based on an equidistant node set, so that the operator could be converged uniformly to bivariate continuous functions with periodicity of 27 on whole plane, and the convergence order of the approximation would be optimal for a body of functions with arbitrary - ordered continuous partial deritives

    摘要構造了一類基於等距結點組上的二元三角插值多項式運算元，使得該運算元在全平面上一致收斂到每個以2為周期的二元連續函數，並且對具有任意階連續偏導數的函數全體的逼近具有最佳收斂階。
  19. It is impotent to design the prefilter which maintain the orthogonality and approximation order of central filter bank

    在預濾波器的設計中，能夠保持中心濾波器組的正交性和逼近階是非常重要的。
  20. The matrix representations of nurbs are applied in the interpolation of nurbs curves and surfaces. in order to improve the effect of approximation, the paper introduces optimal method and presents a practical optimal algorithm for approximation of nurbs curves and surfaces

    接著研究了nurbs曲線、曲面擬合問題，提出用nurbs的矩陣表示來進行插值，簡化了計算過程；採用優化的方法對nurbs曲線、曲面逼近的效果進行了改進，提出了實用的nurbs曲線、曲面逼近的優化演算法。
分享友人
分享到 Line

分享到臉書