條件數 的英文怎麼說

中文拼音 [tiáojiànshǔ]
條件數 英文
conditioning number
  • 條 : Ⅰ名詞1 （細長的樹枝） twig 2 （條子） slip; strip 3 （分項目的） item; article 4 （層次; 秩序; 條...
  • 件 : Ⅰ量詞（用於個體事物） piece; article; item Ⅱ名詞1. （指可以一一計算的事物） 2. （文件） letter; correspondence; paper; document
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. It is proven that these modified dual algorithms still have the same convergence results as those of the conceptional dual algorithms in chapter 2 and chapter 3. secondly, a dual algorithm is constructed for general constrained nonlinear programming problems and the local convergence theorem is established accordingly. the condition number of modified lagrange function ' s hessian is estimated, which also depends on the penalty parameter

    證明這些修正的對偶演算法仍具有同前兩章的概念性對偶演算法相同的收斂性結果，我們還進一步構造了一般約束非線性規劃問題的對偶演算法，建立了相應的局部收斂理論，最後估計了修正lagrange函數的hesse陣的條件數，它同樣依賴于罰參數。
  2. In this paper, the numerical harbor should include following contents : 1. database of wave field, tidal current field, sediment field in researched area ; 2. database of ship styles. 3. numerical model used to analysis data. 4. plans of outer dike, utilities of sea line, and selections of waterway, which based on the above databases

    本文認為，對于港區而言，數值化的內容應包括以下幾個方面: （ l ）所研究港區的波浪場、潮流場及泥沙場等自然條件數據庫的建立; （ 2 ）船型數據庫的建立; （ 3 ）數值分析模式的建立; （ 4 ）提出建立在自然條件基礎之上的外堤布置、碼頭岸線利用策略及航道的擬定方案（即優化模式的建立） ; （ 5 ）按照經濟最優原理快速準確地提出碼頭裝卸的策略及當前方案。
  3. In chapter 3, i analyze this algorithm and draw a conclusion its condition number is lower than cg algorithm ' s

    推導出了它的條件數比原來系數矩陣的條件數要低。
  4. The numerical algorithm of solving the adjoint equations for different design cases have been developed by using finite volume methodology which is usually used to solve the flow governed equation. it includes the some important aspects, such as flux formulation, wall and far - field boundary treatment methodology, dissipative term formulation, etc. after the solution of the adjoint equations is obtained, the derivatives of the cost function with respect to all the design variables can be evaluated with the same operation. this can yields a significant saving over the other gradient - based techniques when there are many design variables

    （ 3 ）進行了應用控制理論和三維歐拉方程的機翼氣動反設計研究，以及有升力約束情形下機翼跨音速減阻問題研究，分別推導了相應的共軛方程及邊界條件數學表達形式，研究與發展了三維共軛方程的有限體積數值求解方法，及相應梯度公式的數值求解方法，通過對計算網格生成、流場計算、共軛方程數值求解、梯度求解和優化演算法等多方面的有效結合，成功發展了三維機翼的氣動反設計和跨音速減阻優化設計程序，成功地進行了多個設計算例研究。
  5. For electrically large problems, the condition number of impendence matrix is very large, and furthermore, the ununiformity of the modeling leads to an ill - conditioned matrix

    對大型電磁散射問題，不僅矩陣的條件數大，而且由於表面網格剖分的不均勻有可能產生病態的矩陣。
  6. A niched - penalty approach is used to transform this optimal kinematical design problem to an unconstrained one. a kinematic accuracy comparison of the genetic designed fine - tuning stewart platform with the quasi - newtonian designed one is made. the comparison results have shown that the kinematic accuracy of the genetic designed fine - tuning stewart platform has a much higher accuracy and a compact structure than that of the quasi - newtonian designed one, which guarantees the accomplishment of high precision trajectory tracking and reduces the disturbance of wind to the feed - supporting system

    以並聯機器人jacobian矩陣的條件數為優化設計的目標函數，提出了基於遺傳演算法的並聯機器人最優運動學性能結構參數優化設計方法，採用實值遺傳演算法，對精調stewart平臺進行了優化設計，得到了最優運動學的精調stewart平臺結構參數，為實現新一代大射電望遠鏡饋源指向跟蹤系統高精度軌跡跟蹤控制奠定了堅實的基礎。
  7. The author analyzed the problems regarding the reasons of application, the amount of preserved object, the amount of security, the provision, time and amount of countersecurity, the determination of wrongful application and corresponding damage compensation procedure etc. the author maintains that criteria and conditions of countersecurity should be clarified by law and the determination of amount and time should be both reasonable and efficient

    探討了申請的理由、保全標的物的數量及其擔保額，海事請求保全擔保的特色及其方式，反擔保的提供、數額、時間，申請錯誤的認定及其損害賠償訴訟等問題，筆者認為，法律應當明晰反擔保提供的原則或條件，數額和時間的確定應當既合理又有效率。
  8. First, we reviewed the finite - difference time - domain yee ' s method. the difference equations, the stability condition, numerical dispersion characteristics, absorbing boundary conditions, incident wave source conditions and the calculation of the frequency - dependent scattering parameters are discussed

    首先本文回顧了時域有限差分yee演算法，包括時域有限差分的差分方程、穩定性條件、數值色散特性、吸收邊界條件，激勵源的設置以及散射參數的計算等。
  9. The traditional methods are to solve the linear algebra equations directly, based on matrix factorization such as lu decomposition. with this kind of methods, the " true " solution can be derived if there is no consideration of the round error

    解線性代數方程組的傳統方法是利用lu分解等直接求解，雖然傳統方法具有理論上直接得到真解的優點，但當系數矩陣條件數很大時，存在嚴重的穩定性問題。
  10. 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。
  11. The backward error and the structured backward error of the approximate solution are the criteria to judge the stability and the strong stability of the numerical algorithm. condition number is a measure of the sensitivity to the approximate solution for the perturbation of original date

    近似解的最佳向後誤差和最佳結構向後誤差的數值分別是判別演算法的穩定性和強穩定性的標準，而條件數則是反映數值問題的解對于該問題數據擾動的敏感程度。
  12. Define a random route, which pass through all the grid node, on the condition of given n conditional datum, get a value on the first grid node from the conditional distribution of stochastic variable, add the new value into the conditional datum as a new conditional data. on the condition of current n + 1 conditional datum, get a new value from conditional distribution of stochastic variable on the next node again. then continue until all the nodes gets own value

    定義一個經過所有網格節點的隨機路徑，在給定n個條件數據的情況下，在第一個網格節點處從隨機變量的條件分佈中抽取一個值，將這個新值加入到條件數據集中，在給定的n + 1個條件數據的情況下，在節點處從隨機變量的條件分佈中抽取一個值，重新進行，直到所有節點被模擬完為止。
  13. Estimates for the condition number of matrices

    關于矩陣譜條件數的估計
  14. The condition number, defined below, is changed by scaling the matrix.

    調整矩陣的比例就改變了下面定義的條件數。
  15. Design and implementation of the database statistic query having dynamic parameters based on b s structure

    可變條件數據庫統計查詢設計與實現
  16. The numerical simulation result obtained by taking the dimensionless mass transfer coefficient as the input parameter of the mathematical model is consistent with the 73 groups of the experimental data and the discrepancies of the enthalpy efficiency and regenerative efficiency are mainly within 15 %

    以實驗得到的量綱一傳質系數作為數學模型的輸入條件，數值計算結果與73組實驗數據吻合很好，全熱效率和再生效率的偏差均集中在15 %以內。
  17. The optimal backward error and the condition number are important measures to evaluate the quality of computed solution

    最佳向後誤差和條件數都是衡量計算解質量的重要指標。
  18. Some preconditioner technique is also studied to improve the condition number and further accelerate iterations, comparisons are made between them by numerical results

    本文還研究了幾種預條件技術，用於改善運算元的條件數，進一步加速迭代，同時用數值結果對比了各自的優劣。
  19. The ordering process, the integer ldlt factorization and the ambiguity screen are three parts of the osd. the osd is based on diminishing the condition number of covariance matrix

    Osd處理過程包括排序、整數ldl ~ t分解和模糊度篩選，該演算法的去相關處理過程，是以降低協方差矩陣的條件數為準則。
  20. The examples show that the new scheme is very effective when the condition number of the normal matrix is less than 1010. compared with other methods, the new scheme improves the precision and accuracy of the computation results obviously

    經過實例驗證，當法矩陣的條件數小於10 ~ （ 10 ）時，這種方案是有效的，與其它方法相比較，顯著地提高了計算結果的精度和準確度。
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