被積函數 的英文怎麼說
中文拼音 [bèijīhánshǔ]
被積函數
英文
integrand- 被 : Ⅰ名詞1 (被子) quilt 2 (姓氏) a surname Ⅱ動詞[書面語]1 (復蓋) cover; spread 2 (遭受) suffe...
- 積 : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
- 函 : 名詞1. [書面語] (匣; 封套) case; envelope 2. (信件) letter 3. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
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According to the variation, features of the integrand, the values of peaks and troughs are taken out and formed a slowly convergent series, and the repeated averaging scheme is performed to calculate the limit rapidly and accurately
根據被積函數的變化特點,將波峰和波谷值抽取出來組成慢收斂序列,利用重復平均法快速而準確地求出其極限值。The integrand is not handed down from on high.
被積函數並不是從天上掉下來的。The first term of the integrand represents the contribution to the error power due to noise.
被積函數的第一項表示噪聲對誤差功率的影響。When imposed some restrictions on the integrand, the limit can be equal zero at infinity
當對被積函數作某些限制時,其在無窮遠處的極限可以為零。Where is called the integral sign, is called the integrand, and is the integral variable
其中被稱為積分號,稱為被積函數,被稱為被積表達式,稱為積分變量。The limit of the integrand f ( x ) of abnormal integral, which is convergent in the infinite range of integration, is not certainly equal zero at infinity
摘要無窮限反常積分收斂時,其被積函數在無窮遠處的極限不一定為零。If the integrand is related to the top integral function in definite integral computation, the definite integral possesses the different expression from
在定積分計算中,當被積函數與上取整函數有關時,會有不同的表達形式。Chapter 1 deals with the numerical simulation method. chapter 2 deals with the monte carlo methods. the monte carlo integration that the domain of integration is curved or complex connected curved polyhedron and the integrand has singular points is discussed in this chapter
第二章討論了用montecarlo數值模擬方法求積分區域為曲面體和積分區域為復連通曲面體的情形,且被積函數有奇異點。The subsection integral is used to get a simple function at first in the numerical calculation, and boundary integral is realized by gauss integral on each panel and line, then the complexity and isstability as a result of the high frequency surge function can be avoided
數值計算中,首先採用分部積分對被積函數進行簡化處理,然後採用高斯積分實現面元和線元上的積分,避免了被積函數為高頻振蕩函數所帶來的數值計算的復雜性和不確定性。The integrands in the dispersion equation are not integrable in general, so we used the asymptotic expansion solution to analyze the behavior of the dispersion relation at the singularity and mapped the dispersion relation curves approximately the system composed of collisionless particles which obey maxwellian distribution or all kinds of degenerate distribution, even in their mixture system, their dispersion relation are analogous
一般來說,色散方程中的被積函數都是難以求積的,本文是用函數逼近法分析色散方程在奇點處的行為,並大致劃出色散關系曲線。由無碰撞粒子組成的系統,不管初始分佈是maxwell分佈還是各種簡並分佈,甚至是這些分佈的混合體,色散關系都是相似的。In chapter2, we establish the model of present value of benefits, which is fitted to two situations - single life situations and multiple life situation : where b ( t ) is a positive function, is force of interest accumulation function, i ( t ) is indicator function and t is the remaining life of the insured
第2章提出了具有一般形式的變額壽險的給付現值模型,適合於單生命狀態和多生命狀態兩種情形:其中b ( t )為正值函數, y ( t ) = t + ? y ( t )為息力累積函數, i ( t )為示性函數。 t為被保險人的余壽。3, 4, 5 and ? 6 of this chapter deal respectively with the transient distribution of the queue length of these four queueing systems. such results are obtained as follows : under the condition of the interarrival times distributions and service times distributions of these queueing models which have density function, their transient distribution of the queue length can be represented as an integral, and the integrated term of this integral can be recursively obtained
在這一章的誇3 、芬4 、縣5和號6中,分別針對這四個排隊模型,討論了瞬時隊長的分佈,最終得到了以下的結果:在這幾個模型的到達間隔分佈和服務時間分佈均具有密度函數的條件下,它們的瞬時隊長分佈可以表示為一個積分,該積分的被積項可以遞歸地求取。The theoretical results showed that point spread function ’ s distribution and the stray light mainly influenced the space resolving power and the measurement precision of the temperature measurement system, so we supposed some methods, which can improve the space resolving power, and the results proved the space resolution improved from 37 m to 16 m. 2. having made the space resolution come to 16 m, in order to improve the space resolving power more, we used image reconstruction method to reconstruct the
利用這兩種方法,可以將測得的溫度場分佈中被點擴展函數卷積鈍化掉的部分復原回來,實驗測得微小面元溫度分佈在復原后溫度最高值高於復原前最高值,且分佈曲線變窄,較好地提高了系統的空間分辨能力,最終得到真實溫度分佈的最佳估計。Based on the unified recursive formula, the four algorithms included in this study are the central difference method, the newrnark ' s method, z - transform method, and duhamel ' s step integral method. the accuracy, the phase and other existent problem are studied in this paper. it is proved in this paper that the recursive parameters b1and b2are relate to the poles of theoretical transfer function
分析中可以發現,中心差分方法, newmark中點加速度方法、 z變換方法及duhamel逐步積分法在精度范圍內其計算相位是沒有畸變的,中國地震局工程力學研究所頃土學位論文一但是中心差分方法, newmark中點加速度方法隨著采樣間隔及系統自振頻率的增大,系統的固有自振周期被改變,其傳遞函數的共振區域與理論傳遞函數的共振區域會發生分離。The presence of a cointegrating relationship between output and inputs, represented by either a two - factor cobb - douglas production function or a three - factor cobb - douglas type, depends crucially on whether country - specific intercepts and country - specific time trends are accounted for
實證分析顯示產出與投入之間同積關系的存在與否?不論這種同積關系是由二要素還是由三要素柯布?道格拉斯生產函數來代表,關鍵取決于各國經濟發展的獨特初始特徵和獨特時間趨勢特徵是否被考慮到。Taking erectophile type continuous vegetation as a example, authors had done many monte carlo simulations, and established empirical analytic expressions of radiances with component temperature, soil emissivity and leaf area index. empirical analytic expressions were used to construct objective function and genetic algorithm was employed to synchronously retrieve 5 parameters, such as component temperature, soil emissivity and lai, from thermal infrared 2 channels and 2 angles data. many experiments of genetic algorithm inversion from simulated data were conducted, results show that it is very robust to retrieve component temperature using genetic algorithm ; genetic algorithm can cope with uncertainty inversion problem pretty well if full advantage of priori knowledge was taken. comparison between inversion results and ground - truth data has been done. this paper offers a new example to retrieve component temperature from multi - channel, multi - angle thermal infrared data based on the model of directionality of thermal radiance
在熱輻射方向性規律的基礎上,以喜直型連續植被為例,進行了大量的monte carlo模擬,建立了輻射亮度和組分溫度植被葉面積指數及土壤比輻射率之間的經驗函數關系。採用遺傳演算法,從熱紅外2個波段2個角度數據中,同時反演混合像元組分溫度土壤比輻射率和葉面積指數等5個參數。通過對模擬的觀測數據進行大量的遺傳演算法反演試驗,結果表明,遺傳演算法反演組分溫度非常穩健,在寬松的先驗知識條件下,遺傳演算法可以解決不確定性反演問題。Fractional calculus, as an important tool of investigating fractal sets, also attracts much interest recently
另一方面,分數階微積分,作為研究函數的一個有力工具,近來也被用於對分形的研究。分享友人