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汉语拼音：suàn zǐ

1.竹制的筹。

2.即算盘。

1. 竹制的筹。

   北魏 贾思勰 《齐民要术·素食》：“蜜薑：生薑一斤，浄洗，刮去皮。算子切；不患长，大如细漆箸。” 石声汉 注：“即竹製的筹。”《新五代史·汉臣传·王章》：“此辈与一把算子，未知颠倒，何益於国邪！”

2. 即算盘。

   清 黄宗羲 《卓母钱孺人墓志铭》：“孺人以弱女子，未明而起，诸事填委，候其指挥，左握算子，右徵市历，官租岁计，转运贮积，会要不爽毫髮。” 康有为 《广艺舟双楫·卑唐》：“至於 有唐 ，虽设书学，士大夫讲之尤甚。然纘承 陈 隋 之餘，缀其遗绪之一二，不復能变，专讲结构，几若算子，截鹤续鳧，整齐过甚。”参见“ 算盘 ”。

• We showed that in noncommutative case, orthonormal base vectors can be chosen to be unitary operators of any fix order.

  我们证明了，在非交换条件下，能够选择标准正交基向量成为任何固定序的酉算子。

• Commutativity up to a factor is one of the invariants of isomorphisms among operator algebras.

  算子的因子交换性是算子代数之间同构的不变量之一。

• In this algorithm the unfitness function is chosen as a merit at the beginning of iteration and a new crossover operator is designed.

  该算法在迭代初始阶段引入了不适应度函数作为评价标准，结合启发式交叉和边重组交叉设计了一种新的交叉算子。

• This paper gives two equivalent conditions of similar and quasi-similar operators on the sequence space and the relation between them.

  在给出序列空间上相似算子与近相似算子的等价条件后，探讨两者之间的关系，并得到新结论。

• A special evolution operator and an objective function were used to satisfy the air traffic control timely request in the algorithm.

  算法采用特殊的进化算子和目标函数，以便能够满足空中交通管制实时性的要求。

• The means of dynamic genetic operators and population control were used to make the evolution escape from localization trap quickly.

  采用动态遗传算子设计和群体规模控制方法，使进化更快速跳出局部最优。

• The results show that this function has the characteristics of powerful single apex, high sensitive and strong anti-noise ability.

  仿真实验证明，该算子具有单峰性强、灵敏度高和抗噪能力好等特点。

• Based an unstructured quadratic separator, a less conservative condition for the existence of a reliable tracking control is derived.

  基于无结构二次型分离算子，可获得保守性更低的可靠跟踪控制器的存在条件。

• Part II: To prove three sufficent conditions with which operator weighted shifts(inverse operator is as weight) is strongly irreducible.

  第二部分：证明算子权移位（可逆算子作为权）是强不可约的三个条件。