A complete quartic polynomial consists of 15 terms . 一個完整四次的多項(xiàng)式由15項(xiàng)組成。
Moreover equations of degree higher than quartic often arise in equilibrium calculations . 況且,在平衡計(jì)算中常常發(fā)生比四次方程還高的高次方程。
Development of quartic group demultiplexer for digital communication 數(shù)字通信四次群分接器的研制
Quartic convolution interpolation and its application in digital maps 四次卷積插值及其在數(shù)字地圖中的應(yīng)用
The result shows that the quartic phase coupling component and quadratic - to - cubic phase coupling one are only extracted using the fifth order cumulants of complex signals 研究表明:復(fù)數(shù)信號的五階累積量是提取四次相位耦合分量、二三對相位耦合分量的必要工具。
Quartic ph curves are studied . their contribution of cusps and inflections are discussed in this paper . a first - order hermite interpolation by quartic ph curves is obtained 文中還研究了四次ph曲線,討論了其尖點(diǎn)和拐點(diǎn)的分布情況,得出了四次ph曲線的一階hermite插值的解。
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(dǎo)數(shù)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。
8 guo b . quadric and cubic bitetrahedral patches . the visual computer , 1995 , 11 : 253 - 262 . 9 wang w , qin k . on the existence and computation of rational quartic spherical curves for hermite interpolation 關(guān)于參數(shù)插值曲面構(gòu)造的研究綜述一般是先在每三角剖分面上構(gòu)造邊界曲線,而后再用一片或多片插值曲面去填充這些曲線網(wǎng)格。
In this paper , we discuss a certain plane quartic system with stellar node : in study , we obtain the global phase portraits of the system , its corresponding algebraic conditions and some results about its structural stability 至今為止,對系統(tǒng)( 0 1 )的比較系統(tǒng)的研究成果基本上還是空白,這主要因?yàn)橄到y(tǒng)的未知參量過多,利用高階奇點(diǎn)理論研究系統(tǒng)全局結(jié)構(gòu)十分困難。
Under action of uniformly or polynomial distributed load , upper and lower critical loads of revolving shells ( including conical shells , spherical shells and quartic polynomial shells ) with uniform thickness , linearly , exponentially or polynomial variable thickness were evaluated 給出了均布或多項(xiàng)式分布荷載作用下,等厚度、線性、指數(shù)型或多項(xiàng)式型變厚度的圓錐殼、球殼或四次多項(xiàng)式型旋轉(zhuǎn)殼的上、下臨界荷載。