sufficient approximation 中文意思是什麼

sufficient approximation 解釋
充分逼近
  • sufficient : adj. 1. 充分的，足夠的。2. 〈古語〉有能力的，能勝任的，夠資格的。n. 〈主、卑〉足夠（的量）。 Have you had sufficient？ 你（吃）夠了嗎？adv. -ly
  • approximation : n. 1. 接近；近似。2. 【數學】近似值。3. 概算，略計。
  1. A. teel, d. nesic etc. initially studied iss stabilization of nonlinear sample - data systems of this type in 1998. practical stabilization of nonlinear sampled - data systems based on discrete - time approximation with sufficiently small sampling periods has been studied in recent years. the sufficient conditions have been given for the practical st abilization of the above case

    第三部分：在采樣周期固定的條件下，研究基於近似離散化模型上設計的關于參數t一致的漸近穩定采樣控制器能夠以漸近穩定方式一致鎮定其連續受控系統的條件。
  2. Abstract : the theory of variable structure control of sing ular nonlinear control systems was considered based on the singular nonlinear systems itself by employing the method of geography, and gives the sufficient condition of existence of variable structure control and approximation theory of real sliding mode. it is shown that sliding condition only guarantee the slow - varying state of real sliding mode approach that of ideal sliding mode but not guarantee the fast - varying state of real sliding mode approach that of ideal sliding mode. the method applied for studying normal nonlinear system can not be used directely to singular nonlinear system

    文摘:利用幾何方法，從廣義非線性系統本身出發，研究了廣義非線性控制系統的變結構控制理論，給出了系統存在變結構控制的充分條件及實際滑動模的近似定理.從所得結論可知，滑動條件僅能保證實際滑動模的慢變狀態趨近於理想滑動模的慢變狀態，而不能保證實際滑動模的快變狀態趨近於理想滑動模的快變狀態，研究正常非線性系統的方法已不能簡單地被利用到廣義非線性系統
  3. The necessary and sufficient condition for centrosymmetric solution of matrix equation was presented and general solutions were obtained. the optimal approximation solution to a given matrix was provided in the solution set

    先討論一類矩陣方程存在中心對稱解的充分必要條件，給出解的一般表達式，並在解集合中給出了與給定矩陣的最佳逼近解。
  4. In addition, the problem of using anti - centrosymmetric matrices to construct the optimal approximation to a given matrix is discussed, the necessary and sufficient conditions about the problem are derived, and the expression of the solution is provided

    並討論了用反中心對稱矩陣構造給定矩陣的最佳逼近問題，給出了該問題有解的充要條件和解的表達式。
  5. ( 5 ) the constructively sufficient conditions of the approximating c1 functions and the explicit formula dealing with the approximation precision and the number of fuzzy rules are given for one kind of general fuzzy systems, using the methods different from the former ones which are based on the stone - weierstrass theory, therefore, the constructively sufficient conditions are also generalized from polynomial function to c1 function

    （ 5 ）針對一類一般的模糊系統，採用與通常的基於stone - weierstrass定理證明模糊逼近器不同的方法，首次給出了它們逼近c ~ 1函數的構造性充分條件，並給出了逼近精度與模糊規則條數之間關系的顯式表達式
  6. In the forth chapter, a necessary and sufficient condition of the approximation by the partial sum of the generalized baskakov operators is discussed

    第四章給出廣義baskakov運算元用其部分和來代替進行逼近的一個充分必要條件。
  7. Using the method of stochastic analysis, we demonstrate c - tightness of the scaled queue length processes and derive a sufficient condition for the existence of the diffusion approximation under a general priority service discipline

    在優先服務原則下，給出了這類網路的標準化隊長過程擴散近似存在的充分條件。
  8. 6. the necessary and sufficient conditions for the existence of and the general expressions of the skew - symmetric solution of the lyapunov equation f7 ( x, y ) = 0 are obtained, and the related optimal approximation problem is solved

    6 .得到了廣義lyapunov方程人（ x ， y ） = o具有反對稱解的充分必要條件，解的通式及解的最佳逼近問題的解
  9. The minimal norm solutions of the equation f4 ( x ) = 0 over srmxm are derived, and also the necessary and sufficient conditions for the existence of and the general expressions of the skew - symmetric solution of the equation f4 ( x ) = 0 are obtained, the related l - s problem f4 ( x ) = min is solved. 5. the necessary and sufficient conditions for the existence of and the general expressions of the skew - symmetric solution of the generalized sylvester equation f5 ( x, y ) = 0 are obtained, and the related optimal approximation solution is obtained, too

    得到了矩陣方程f _ 4 （ x ） = 0在sr ~ （ m m ）上的極小范數解，同時導出了此方程具有反對稱解的充分必要條件和解的通式，解決了相應的l一s問題人（ x ）二min . 5 .得到了廣義sylvester方程兒（ x ， y ） = 0具有反對稱最小二乘解的充分必要條件和解的通式以及解的最佳逼近問題的解，導出了幾（ x ， y ）二0具有置換對稱解的充分必要條件，解的通式及解的最佳逼近問題的解
  10. This ph. d. thesis - firstly considers the real asymmetric, real symmetric, bisym - metric, and symmetric and skew antisymmetric matrix extension problems constrained by the matrix inverse problem ax = b. and also considers, in the solution set, of the corresponding matrix extension problems, the optimal approximation solution to a given matrix a *. the necessary and sufficient conditions for the existence of and the expressions for the above problems are derived, and the numerical algorithm and examples to solve the problems are also given

    首次提出並討論了矩陣反問題ax = b約束下實矩陣、實對稱矩陣、雙對稱矩陣和對稱次反對稱矩陣的擴充問題，討論了在其解集合中與給定矩陣a ~ *的最佳逼近問題，得到了問題的解存在的條件及通式的表示，給出求解問題的數值演算法和數值例子。
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