regular variable 中文意思是什麼
regular variable
解釋
規則變星-
Cepheid variable stars are stars whose brightness changes at regular periods
造父變星是一種光線按規律周期發生變化的恆星。 -
So the sliding mode variable structure controller was discussed, which has strong robustness against the disturbance, and the chattering phenomenon inherited from vsc was taken advantage to regular valve vibration for the purpose of avoiding coagulation on it, while precision of level control can be almost unaffected. but for the reason of control limitation, especially the acceleration insufficiency, the continuous time quasi - sliding mode vsc for one class of controllable system, as the substitution of ideal sliding mode control system, which was impossible to implemented, was researched, including the three essentials, reaching condition in particular, and the chattering ex - pression was given. furthermore, the effect to quasi - sliding mode motion and chatter - ing expression by extent disturbance was also analyzed
由於控制量相對受限制，並且主要體現在控制量加速不足方面，無法實現理想的滑模變結構控制，因此本文研究了一類能控系統在這種情況下的連續系統準滑模變結構控制，包括變結構控制三要素，尤其是到達條件；並且針對塞棒掛渣問題，給出了該情況下抖振的表達式；魯棒性方面，分析了外界擾動對準滑模運動的影響，並且給出了外擾作用下抖振的表達式。 -
The analysis result on prestressed concrete slab - column structure in regular column layout is closed to that of actual situation. for slab - column structure of variable slab width, approximation is needed or is replaced by fem
等代框架法對規則板柱結構的分析比較接近真實情況，對板帶寬度變化的板柱結構則需作近似或改用有限元法來計算。 -
Cf is a kind of non - different recommendation to all customers, so it is may appear that the company spend much cost but have little revenue. recently a new recommend technology base on lifetime value of customers have emerged, the centre of the technology is to use the weighed sum of the three variable to classify the customers and the reason of use weighed variable is that think about the relative important degree. then we can recommend products according to the association rule in the classify of same clv. the shortcoming of this recommendation is that the recommendation may have some error when the customers ’ data is not enough to form regular value
近年來出現了一種採用基於客戶生命周期值的加權rfm （表示客戶生命周期的三個指標變量）技術的推薦方法，這一技術的核心思想就是採用這三個客戶屬性變量的加權和的方法來對客戶進行聚類，其中為變量加權是考慮到不同變量對顧客產生的不同重要程度的影響。對符合某一生命周期類型的客戶按照商品挖掘關聯技術進行商品推薦。這種推薦方法的弊端在於當客戶的交易數據不足以形成規律化的量值時，推薦可能會出現偏差。 -
What is the difference between a reference and a regular variable ? how do you pass by reference & why would you want to
引用變量與普通變量之間有何區別？如何通過引用傳值？在什麼情況下會這樣做？ -
An important thing to notice here is that before the variable, you need to put the loop name followed by a dot (. ), if you don ' t, the template engine will thing it ' s a regular template variable, and ( probably ) won ' t find a match, and so it won ' t display anything
有一個重要的問題需要注意，你需要在變量的循環名稱中放置一個點號（ . ） ，否則模板引擎會認為它是一個普通變量，可能不會進行匹配和輸出數據 -
For the interface problems with variable coefficients, it is introduced that a particular finite element method combined with the infinite element method to approach the singular solution in the neighborhood of the singular points, and it is proved that the method possesses the same accuracy as the finite element method to the regular solution
對變系數內邊界問題，介紹了一種特殊的有限元方法。該方法結合了無限元方法，使在奇點附近的奇性解得到好的逼近。證明了該方法具有與有限元方法對正則解相同的精確度。 -
Abstract : in this paper, the authors study the initial value problems of a class of weakly nonlinear differential equation. the first and the second order approximate solutions are obtained. their accuracies are high and the more the approximate order is high, the more the accuracy is high. if the regular perturbation method is used to solve the same problems, then, when the independent variable is big, so is the error of the solution
文摘:用插值攝動法1研究一類弱非線性常微分方程的初值問題，得到了一級及二級近似解.解的精度很高，並逐級提高.如果用正則攝動法求解此類問題，則當自變量較大時，誤差很大
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