例句與造句

1. abstract : the definitions of eigenvalue cluster and weakly damped system applicable to perturbation for calculating eigenpairs of discrete systems are presented
   文摘:給出了適合于用攝動法進行特征靈敏度計算的離散振系特征值組和弱阻尼的定義，并作了解釋和給出了算例。
2. this ph . d . thesis firstly considers the jacobi matrix extension problems constrained by defective eigenpairs and a submatrix, and firstly considers the construction of a jacobi matrix from its mixed-type eigenpairs
   首次提出并討論了非順序主子矩陣和缺損特征對約束下的jacobi矩陣擴充問題及由混合型特征對構造jacobi矩陣的問題。
3. this ph . d . thesis firstly considers the jacobi matrix extension problems constrained by defective eigenpairs and a submatrix, and firstly considers the construction of a jacobi matrix from its mixed-type eigenpairs
   首次提出并討論了非順序主子矩陣和缺損特征對約束下的jacobi矩陣擴充問題及由混合型特征對構造jacobi矩陣的問題。
4. by analysis the structural characterizations of the eigenpairs of the jacobi matrix, the necessary and sufficient conditions for the existence of and the expressions for the above two problems are derived, and the numerical algorithms and examples to solve the problems are also given
   通過對jacobi矩陣的特征對的結構特性的分析，得到了上述兩個問題有解的充分必要條件，給出了求解問題的數(shù)值算法和數(shù)值例子。2
5. block davidson method is very efficient for computing the extreme eigenpairs of large symmetric matrices . but it needs much memory, so restarting process is always used in it . this paper mainly studies the restarting process of the davidson method, and proposes two new methods : refined block davidson method and refined block davidson method with deflation
   塊davidson方法是求解對稱矩陣特征值問題的一種有效的方法，由于塊davidson方法存儲量大，通常在該方法中使用重新開始過程。本文主要研究了塊davidson方法的重新開始技術，提出了精化塊davidson方法和收縮的精化塊davidson方法。
6. It's difficult to find eigenpairs in a sentence. 用eigenpairs造句挺難的