求值法 的英文怎麼說
中文拼音 [qiúzhífǎ]
求值法
英文
evaluation method-
The best optimum mathematical model is constituted. scalar factor of structural parameter on loop rectangular negative pressure and adsorption slide is calculated. structural parameter, air gas source pressure carrying capacity and thickness of air cell are made sure by hydrodynamics and the theory of gas lubrication
詳細論述了導軌副的設計過程，運用數學上的拉格朗日條件極值求解法，建立最優化數學模型，求出環矩形負壓吸附導軌的結構參數的比例情況，並運用流體力學和氣體潤滑理論確定了環矩形負壓吸附導軌的結構參數、氣源氣壓、承載能力和氣膜厚度的確定性結論。First calculation method : doing horizontal projection drawing on drawing piece, k value is introduced by area equation of projection drawing, k value is obtained by area equation, along outline of projection drawing to add k value, that is, outline shape of blank drawing, principle area - equal and shape similar are used. second calculation method : along outline of drawing piece horizontal projection drawing, to do normal line of penetration line for wantonly point of this point, to obtain high of drawing piece on this point normal line, point and point is to form outline shape of blank
計算方法之一為k值法：作拉深件水平投影圖，在該投影圖面積方程中引入k值，利用面積相等原理解方程，求得k值，沿水平投影外沿加上k值，即為毛坯圖的外廓形狀。計算方法之二為拉深線法：沿拉深件水平投影圖外廓，在任意點作該點切線的法線，在該法線上以該點拉深件的高度為量，在法線上取截點。You can use the following algorithm to evaluate postfix expressions
您可以用如下演算法對后綴表達式求值：If one consigers the fact that the firstderivative of the function may be difficult to compute analytically the new procedure will become an attractive alternative and it has quartic convergence
這種混和方法對于解決導數求值比較困難的問題是一個良好的選擇，而且它具有四階的收斂性。After generalizing the characteristic of modern equipment, the mission of equipment management and general situation of chinese equipment management, basied on two forms of equipment management - - - - - - practicality & value, the author combined quantitative & qualitative methods with example to analyze and discuss questions, especially the reasonable update & depreciation, accordingly achieving the optimization of the technical efficiency & economic benefit 0 one of emphases of the thesis is methods application of equipment reasonable update, that is starting with economic benefit to looking for reasonable using fixed number of year. the thesis used inferior - converted numeric method and rate equation which based on the theory square and combined with harbor loading machines & tugboat ' s actual facts, calculated the economic life of the same machine in order to make sure harbor machines " reasonable using fixed number of year. at the same time, the author made use of midpoint value regress method and stochastic trapeziform forecast method to calculate and analyze and gain the reasonable conclusion o the other emphases is questions of harbor equipment
本文概括介紹了現代設備的特點、設備管理的任務以及我國設備管理發展的概況后，作者從設備經濟管理的兩種形態? ?實物形態和價值形態出發，採取定量與定性相結合，以定量為主，結合實例進行分析與論述，對港口設備的合理更新與折舊問題進行了著重研究，從而實現設備的技術效能和經濟效益的最優化。本文研究的重點之一是設備合理更新的方法應用，即從經濟效益出發，來尋求設備的合理使用年限。本文結合港口裝卸機械和港作拖輪的實際，運用以正方形理論為基礎的低劣化數值法和費用方程兩種方法，計算了同一種機械設備的經濟壽命，從而確定港機合理的使用年限，同時，運用了中點值回歸法和隨機梯形預測法進行計算和分析，得到了合理的結論。The elastic foundation model is considered as two - parameter elastic foundation model and its effect to moderate - thick plates are taken into account by a set of governing differential equations. united with hu hai - chang ’ s function, least squares collocation weighted residual method which uses b - spline function as trial function is put forward for solving the bending problems. compare with the results of finite element method of lines, spline finite strip method, accurate solution of series etc. it is proved that the method in this article has adequate accuracy and practical feasibility
本文採用瑞斯納中厚板理論求解彈性地基板，建立雙參數地基與中厚板相互作用的控制微分方程，結合胡海昌的解耦函數，運用雙五次b樣條函數作為試函數的離散型最小二乘加權殘值法分析了雙參數地基上的中厚板的彎曲問題，並將結果與有限元線法、有限條法、級數精確解等進行比較，證明本文方法具有足夠的精確性與實際的可行性。The former is calculated by mom. special attention is paid to the evaluation of the admittance matrix elements, which involve the internal and external mutual coupling. the latter is solved using po
矩量法用於波導縫隙陣列的模式項散射的計算，著重分析了包含外部耦合和內部耦合的矩陣元素的求值。In alpha beta search, a procedure of eliminating unnecessary evaluation of nodes which uses alpha cutoff and beta cutoff
搜索技術中，使用修剪和修剪對不必要的求值結點加以修剪的一種處理方法。Evaluation algorithm and knot insertion algorithm for b - spline surfaces
樣條曲面的求值和節點插入演算法研究The function of science and technology progress in economic development is discussed from the economic and technique. this thesis divides four contents. chapter 1 analyzies cobb - dorglas production function and so1ow " worth method in remaining " theories, and introduces this thesis ’ main content. measure to calculate chemical fibre business science and technology progress contribution rate with the " worth method in remaining ", the chemical fibre business annual report data for measure to calculate basic data, calculation method adopt excel, using this method to jilin chemical fibre business in the 1995 - 2005 years science and technology progress the contribution rate proceeds to measure and analyze
本文從技術和經濟相互關系角度論述了科技進步在經濟發展中的作用，著重分析了柯布一道格拉斯生產函數及索洛（ so1ow ） 「余值法」在我國化纖企業中的適用性。針對化纖企業多年以來受產能增加和需求不足的影響而產生的效益滑坡問題，利用企業上市公司年報數據，使用excel表進行數據計算，研究歸納出一種簡捷、科學的測算化纖企業經濟增長中科技進步貢獻率的模型方法。I hope you will find w3eval to be a useful online tool for evaluating expressions in a way that is more natural than the classical method
我希望您會發現w3eval是個對表達式求值有益的在線工具，它在某種程度上比經典的方法更簡單自然。Based on a systematic discussion on the contents, characteristics and the up - to - now accomplishments of these three operations in cagd, we present our researches in three ways as follows : ( 1 ) efficient evaluation for parametric curves and surfaces based on generalized ball bases based on the generalization of mathematical model of surface lofting program in the consurf system, two generalized ball surfaces and the recursive algorithms for evaluating them are given. furthermore, the conversion algorithms from bezier form of a surface to these two generalized ball forms are presented
在系統地論述cagd中此三類運算的內容、特點、已有研究成果的基礎上，就以下三方面給出了研究成果： （ 1 ）基於廣義ball基的參數曲線曲面快速求值以前英國航空公司consurf系統機身模線程序數學模型的推廣為基礎，定義了兩類廣義ball基曲面，給出了求值的遞推演算法，推導了b zier曲面到這兩類曲面的轉換演算法In addition, in order to solve the differencing equations, feasible project is presented to deal with the first and second boundary conditions. finally, jacobi interation method is selected for the solution of the equation systems
為了實現內點離散方程組的封閉，本文就第一、二類邊界條件在計算時的處理和邊界外虛擬點的外插法求值，給出了可行的解決方案。It does not convert infix expressions to postfix notation ; rather, it evaluates the infix expression directly
不是把中綴表達式轉換為后綴表示法；恰恰相反，它對中綴表達式直接求值。When you configure the for loop container by specifying an evaluation condition, initialization value, or assignment value, you can use either literals or expressions
用指定求值條件、初始化值或賦值值的方法配置for循環容器時，可以使用文字或表達式。Abstract : this paper mainly utilizes the methods of formula, isometric transform, cut and complement, extremes and analyzing special section to calculate the volume in solid geometry
摘要:文章探討了用公式法、等體積變換法、割補法、極值法、分析特殊截面等方法求立體幾何中幾何體的體積。The classic approach to writing code to evaluate arithmetic expressions was described by donald knuth in 1962 see resources
編寫代碼對算術表達式求值的經典方法由donald knuth描述於1962年（請參閱Classic algorithms for expression evaluation
表達式求值的經典演算法The following algorithm is used to perform a single step of the evaluation of an expression
後面的演算法用於單步執行表達式求值：Secondly, we introduce the recurrence definition of the non - uniform algebraic - hyperbolic b - spline basis using divided differences and the de boor - fix recurrence definition on polynomial functions, and based on the new forms, algebraic - hyperbolic b - spline curves are obtained. they share most of the properties as those of the b - spline curves in the polynomial space. we focus on deducing the calculating and knot inserting formulae for this new kind of curves and then prove that they have the variation diminishing properties
二、利用廣義差商，基於多項式b樣條的deboor - fix遞推定義，給出了任意階非均勻代數雙曲b樣條的遞推定義，由此構造麯線，證明它的幾何不變性、仿射不變性、凸包性、 v . d .性等，重點給出了非均勻代數雙曲b樣條曲線的遞歸求值和節點插入演算法，演算法簡單且穩定，便於在計算機上實現分享友人