condition number 中文意思是什麼

condition number 解釋
病態矩陣
  • condition : n 1 狀態，狀況，情形；品質。2 〈pl 〉外界狀況，周圍情形。3 地位，身分。4 條件；【語法】條件子句。...
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. After the mechanism that register is examined, register a condition to according with, send " enterprise movables pawn registers card ", add up to alexandrine attach a slip of paper to a document with comments on it in guaranty " enterprise movables pawn registers card " number, date, build register special rule

    登記機關審查后，對符合登記條件的，發給《企業動產抵押物登記證》 ，並在抵押合同上簽注《企業動產抵押物登記證》的編號、日期，加蓋登記專用章。
  2. Baryon number transport and stopping provide entirely different initial condition for the probably produced qgp

    中心快度區的重於數阻止和重子數穿透的倩況為可能產生的qgp提供了完全不同的初始條件。
  3. 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。
  4. The results showed that plant height, crown breadth, leaf number, leaf breadth and sporophyll number of dryopteris crassirhizoma populations were influenced by forest crown density and light condition

    結果表明：林分郁閉度和光照條件顯著影響粗莖鱗毛蕨種群的株高、冠幅、葉片數量、葉片寬度、孢子葉數等形態指標。
  5. 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。
  6. 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。
  7. Then with implicit function theorem the flexible workspace is dealt with. by using the jacobian matrix of the hybrid input mechanism, the sensitivity of output is obtained. then the condition number of jacobian matrix is derived

    進而研究平面閉鏈機構的柔性工作空間，並利用隱函數定理快速地推導出平面閉鏈5r和4rp機構的工作空間的邊界條件。
  8. 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。
  9. Estimates for the condition number of matrices

    關于矩陣譜條件數的估計
  10. 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。
  11. But when the condition number of the matrix is very large, the round error will be accumulated to collapse the true solution, that is, the method is unstable

    同時，當系數矩陣的非零元結構不規則或帶寬較大時，其計算量與存儲量十分大。
  12. The feasibility of its avoidance from the actuating - singularity by means of step motors and mutation of mechanism is proven with the help of the condition number of the jacobian matrix

    結合實例提出一種機構構形變異和驅動變異，其可以避免奇異中對機構影響最大的驅動奇異。
  13. 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。
  14. 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。
  15. 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。
  16. 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。
  17. Due to the convergence of cg method is strongly dependent on the condition number of the hessian, the inexact newton method with cg subiterations will be powerful if these cg subiterations are replaced by preconditioned cg subiterations with suitable preconditioner

    由於cg法的收斂狀態強烈的依賴于海色陣的條件數，所以用條件預優共軛梯度法（ pcg ）替代cg法會得到更好的效果。
  18. Second, we discuss the minimum quality of condition numbers of ad, w and the singular linear systems. third, since condition numbers can not be computed exactly, we give the definition of the condition number of the condition number to know the sensitivity of the problem " compute the condition number "

    再次，由於條件數不能被精確計算， demmel提出了條件數的條件數這個概念，我們定義了加權drazin逆和奇異線性方程組的加權drazin逆解的條件數的條件數，並給出它的界。
  19. And then the ill effects are discussed in the view of computation and statistics, respectively. a new diagnostics technique so - called stability analysis method is proposed. the characteristics analysis, the condition number and the condition indexes & variance decomposition proportions methods are discussed, respectively

    提出了一種新的診斷技術? ?穩定性分析法，這是本文研究的一個重點內容；就基於特徵系統的特徵分析法、條件數法和條件指標與方差分解比法等診斷理論進行了較為詳細地研究和探討；對標準化及重新參數化與線性變換對病態性問題的影響進行了初步研究。
  20. Abstract : a new preconditioner is proposed in the preconditioned conjugate gradient method ( pcg ) for solving the problem arising from image restoration. the condition number of the new preconditioned system is proved to be much less than the original one. numerical results show that the new method is better than the classical pcg

    文摘:在圖像恢復實際模型的預條件共軛梯度法中，提出了一種新的預處理運算元.將新的預處理運算元應用於原來的系統，證明了其條件數得到大大的改善.實驗結果表明，新的預處理運算元具有很大優越性，比傳統的預處理運算元具有更快的收斂速度
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