適當稀疏 的英文怎麼說

中文拼音 [shìdāngshū]
適當稀疏 英文
selective thinning
  • : 形容詞1 (適合) fit; suitable; proper 2 (恰好) right; opportune 3 (舒服) comfortable; well Ⅱ...
  • : 當Ⅰ形容詞(相稱) equal Ⅱ動詞1 (擔任; 充當) work as; serve as; be 2 (承當; 承受) bear; accept...
  • : Ⅰ形容詞1 (事物出現得少) rare; scarce; uncommon 2 (事物之間距離遠; 空隙大) sparse; scattered 3...
  • : Ⅰ動詞1 (疏通) dredge (a river etc )2 (疏忽) neglect 3 (分散; 使從密變稀) disperse; scatte...
  • 適當 : suitable; proper; appropriate
  • 稀疏 : few and scattered; few and far between; thin; sparse
  1. In this paper, we consider the optimal parameter vector a of the modified incomplete gauss _ seidel method ( migs ). we prove that the spectral radius function of the iterative matrix t of migs with parameter vector is strictly monotonic decreasing with respect to a satisfying 0 e if the classical gauss _ seidel method converges for a z _ matrix. some properties of the left and right eigenvectors corresponding to the largest eigenvalue in modulus are given, too. these results are useful to find an optimal parameter for migs

    目前主要的方法有兩類:一是充分利用所給矩陣a的特點,採用的主元素選取策略,使分解出的因子盡可能地保持性;二是迭代法。對于第二種方法,迭代矩陣的選取具有決定作用。只有選取的迭代矩陣的譜半徑小於1才能保證迭代法收斂。
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