在SQL Server中，你要使用迹函数（trace function）,而在Sybase中，你就得使用本地函数。只要你愿意，你都可以析取信息、生成报告、创建基准。
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变迹函数 apodizing function
轨迹函数 locus function
传递函数轨迹图 transfer locus
求代数数或者函数的迹 Trace
二维函数轨迹命令 animatecurve
A new trace function was proposed,the XTP public key cryptosystem based on the 3-rd order LFSR se-quence(the so-called XTR3 system) was extended to the XTR4 system based on the 4-th order LFSR sequence.
提出一种新的迹函数,将基于3阶LFSR序列的XTR公钥密码体制(称之为XTR3体制),改进为基于4阶LFSR序列的XTR4公钥密码体制。
参考来源 - 期刊学术社区By the properties of the newly defined algebraic, trace function and character function, we can also verify that the corresponding frequency hopping sequences family is optimal. Meanwhile, we give some concrete algebraic functions satisfying the desired properties.
最后，本文定义了一类新的满足一定的条件的代数函数，利用它和迹函数的复合来构造跳频序列簇，同样由此代数函数满足的条件结合迹函数，特征函数的性质可证明此跳频序列簇也是最优的，同时本文列举了一些满足所提条件的代数函数。
参考来源 - 最优跳频序列：自相关和互相关性质·2,447,543篇论文数据，部分数据来源于NoteExpress
大量文献表明，迹函数已成为研究序列密码的一个强有力的工具。
It has been proved to be a powerful tool to study the sequence cipher by numerous documents.
分析表明：可以通过改变光栅的相移点数、选择不同的变迹函数，研制用于WDM和DWDM的滤波器。
The results show that a series of band pass filter applied in WDM and DWDM were made by the change of inserted phase-number and apodising functions.
通过调整超结构光栅各参数诸如：光栅长度、折射率平均变化量、变迹函数等，从而可获得理想的反射谱特性。
Through adjusting involved parameters such as wavelength, refractive index average variation value, anodized function, ideal spectral characterizations are obtained.
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