1) biquadratic
[英][,baikwɔ'drætik] [美][,baɪkwɑd'rætɪk]
双二次多项式
1.
Aiming at solving all these issues,this paper suggests the biquadratic interpolation method,which depends on the point\'s location relating to corners and edges of the grid network,only the nearest nine points are needed for each point\'s interpolation.
分析似大地水准面格网插值目前常用的方法,指出基于距离的加权内插方法是存在问题的,它会使曲面畸形、错开、不光滑、不连续,而双线性内插方法会使曲面存在明显的"尖点"和"折痕",这不符合似大地水准面的连续光滑性质,双二次多项式插值方法在拐点插值的情况下,也会出现曲面错开的现象。
2) biquadratic interpolation polynomial
双二次插值多项式
1.
Based on the interpolation method,a model to represent the surface of a grid DEM based on biquadratic interpolation polynomial is obtained,and a propagation error formula by the polynomial is derived.
基于函数插值方法,得出了基于不完全双二次插值多项式的规则格网数字高程模型(DEM)的表面表达模型,并推导了相应的传递误差公式。
3) quadratic polynomial
二次多项式
1.
On quadratic polynomials n~2±n+c constantly expressing prime numbers and composite numbers;
二次多项式n~2±n+c表素数、合数的问题
2.
G~1 convexity preserving quadratic polynomial parametric interpolating curve
G~1保凸分段二次多项式插值参数曲线
3.
Target tracking prediction in WSN based on quadratic polynomial motion modeling
基于二次多项式运动建模的WSN目标跟踪预测
4) quadratic polynomials in several elements
多元二次多项式
5) binary quadratic polynomial
二元二次多项式
1.
In this paper we give a simple method for factorization in real number field to binary quadratic polynomial F(x,y)=ax 2+bxy+cy 2+dx+ey+f and, by using the method, quadratic polynomials in several elements can be decomposed simply.
给出二元二次多项式 F(x,y) =ax2 +bxy +cy2 +dx +ey +f在实数范围内因式分解的一种简便方法 。
6) bicubic polynomial
双三次多项式
1.
The solution is constructed as the sum of a bilinear polynomial and piecewise bicubic polynomials by Hilbert space spline function methods.
考虑对空间散乱点的一种双三次多项式样条插值,使得插值函数对x与对y的二阶偏导数平方积分极小(带自然边界条件)。
补充资料：双[1-(4-二甲氨基)苯基2-苯基1,2-二硫代乙烯合镍]
分子式：
CAS号：
性质：紫黑色单斜晶体。熔点277～278℃。溶于苯、甲苯、三氯甲烷等大多数有机溶剂。红外频率υ(C＝S)1190、1165、1140cm-1,红外频率υ(S-C-C-S)880cm-1。由对二甲氨基安息香、五硫化二磷在二噁烷(二氧六环)中反应后,加入镍(Ⅱ)盐溶液制得。用作光学非线性材料。
CAS号：
性质：紫黑色单斜晶体。熔点277～278℃。溶于苯、甲苯、三氯甲烷等大多数有机溶剂。红外频率υ(C＝S)1190、1165、1140cm-1,红外频率υ(S-C-C-S)880cm-1。由对二甲氨基安息香、五硫化二磷在二噁烷(二氧六环)中反应后,加入镍(Ⅱ)盐溶液制得。用作光学非线性材料。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条