polynomial in x 中文意思是什麼

polynomial in x 解釋
變量x的多項式
  • polynomial : adj. 1. 【動、植】多詞學名的。2. 【數學】多項式的。n. 1. 【動、植】多詞學名。 2. 【數學】多項式。
  • in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
  • x : X2＝ （羅馬數字）10 XX ＝ 20 IX ＝ 9 XV ＝ 15 XL ＝ 40 LX ＝ 60 XC ＝ 90 DXL ＝ 540 MX ＝ 1010 ＝...
  1. In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector

    在ct圖像重建時，選擇有限帶寬窗有較好的空間解析度，三角形窗有較好的密度解析度，選擇餘弦窗則使得空間解析度與密度解析度的折衷；從窗函數的頻譜角度來講，可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件： （ ? ）小的3db帶寬b ，即最小的主瓣寬度； （ ? ）最小的旁瓣最大峰值a ； （ ? ）最大的旁瓣峰值衰減速度d ；就內插函數而言，臨近點內插與線性內插重建圖像噪聲大，但有較好的邊緣與細節； 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑，局部特性較好。
  2. In the design and analysis of block cipher, considering the noncontinuity of encryption and decryption of advanced encryption standard - rijndael algorithm and the arbitrariness of the choice of polynomialm ( x ), we change the modular polynomial and the polynomials used in process of encryption and decryption, which the encryption polynomial and the decryption polynomial are the same polynomials in our choices. the new algorithm have more continuity

    在分組密碼的設計與分析方面：針對美國即將推出的高級加密標準rijndael演算法的加解密的不一致性和rijndael演算法中模多項式的選取隨意性，我們修改了rijndael演算法中的模多項式和加解密所用的多項式，使得加解密取相同的多項式，這樣加密與解密具有更多相容性。
  3. In this paper, the stability and multiplicity of closed geodesics are considered on some compact simply connected manifolds with the eohomology algebra td, n ( x ) of truncated polynomial algebra

    本文研究一類單連通緊流形上的閉測地線的多重性與穩定性，這類流形具有截斷多項式代數作為其同調代數
  4. First of all, the algorithm base on the boundary problem of helmholtz equation and finite - difference technique, calculate the field in “ cold ” cavity and disperse the helmholtz equation, as a result of the formula : ax = x. secondly, according to the eigenvalue of matrix theory and applied iterative methods, eigenmode adopt a numerical approach which allows the improved chebyshev polynomial iteration which based on the power method to extract the isolated eigenmode in the spectrum. finally, we resolve the problem of compatibility in software and insert the eigenmode module into the chipic which will have the function of eigenmode analysis

    具體的說: （ 1 ）首先以電磁理論中的亥姆霍茲方程的邊值問題理論和計算電磁學中的有限差分法為基礎，計算冷腔中的場分佈並離散亥姆霍茲方程，得到標準的本徵值問題: ax = x ; （ 2 ）然後根據矩陣理論中的eigenvalue問題和數值計算中的迭代方法，採用改進后的chebyshev多項式，在power迭代法的基礎上對ax = x進行多項式迭代，實現對頻譜中孤立本徵模的萃取; （ 3 ）最後將用fortran語言編制的eigenmode模塊加入到chipic軟體中，解決了eigenmode模塊與chipic主代碼的兼容問題，從而實現了chipic軟體的模式分析功能。
  5. In chapter 1, one type of maximal subgroups in symplectic groups over polynomial rings are obtained. let f be a field, r = f [ x ] be a ring of polynomial in one variable over f, m be a positive integer, f ef and s be the ideal of r generated by - f, we define :, then g ( s ) is a maximal subgroups of sp ( 2m, r )

    在第一章中，得到了多項式環上辛群的一類極大子群：設f是一個域， r = f [ ]是域f上關于的一元多項式環， m是一個正整數， f f ， s是r的由- f生成的理想，則是sp （ 2m ， r ）的一個極大子群。
  6. Journal of symbolic computation, 1994, : 585 - 595. 16 gao x s, luo y. a characteristic set method for difference polynomial systems. in int

    我們將特徵列方法推廣到非線性差分方程組，證明了差分特徵列的基本性質給出了計算差分情形特徵列的演算法。
  7. Factors that affect two - phase flow pressure drop are discussed in details at first. polynomial is used to fit the relation between property of differential pressure signal and lockhart - martinelli parameter x. based on the relation, a dual - parameter identification scheme using only differential pressure signal is given

    討論了影響兩相流壓降的因素，用多項式擬合的方法研究了不同流型下差壓信號方差與lockhart ? martinelli參數x之間的函數關系。
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