1) cycle of numbers
数到周期
2) The bill falls due next week.
支票在下周到期。
3) periodic function
周期函数
1.
Some conclusions on periodic function;
关于周期函数的一些结果
2.
By constructing periodic function, the periodic demand of Fourier transformation will be meeted.
该方法通过构造周期函数,满足了频域法中进行Fourier变换的周期性条件,从而克服了经典频域三点法中直线形状误差的非封闭性、非周期性以及端点的不连续而引起的高阶谐波分量失真等边缘效应。
3.
We mainly use the Brouwer s theorem getting sufficient conditions for the existence of a unique asyptotically stable periodic solution to two competition species when the intrinsic growth rates are periodic functions of time.
利用不动点定理得到了两竞争物种当自然增长率为t的周期函数时唯一、稳定的正周期解存在的充分条
4) period constants
周期常数
1.
At the same time,by means of computations of period constants,the necessary conditions for such isochronous center are obtained.
同时通过对周期常数的计算,得到了该复解析系统的等时中心的必要条件,并利用多种有效途径逐一证明了条件的充分性。
2.
The paper introduces the transformation of the quasi-analytic systems into complex analytic systems and solution to center conditions and isochronous center conditions for a class of quasi-analytic systems by means of computations of singular point values and period constants.
首先,将拟解析系统转化为复解析系统,然后通过对奇点量和周期常数的计算,得到了该拟解析系统的中心条件和等时中心条件。
5) periodic coefficients
周期系数
1.
Hopf-Flip bifurcations of a two-degree-of-freedom mechanical system with periodic coefficients;
一类周期系数力学系统的Hopf-Flip分岔
2.
Global asymptotic stability for delay difference equations with periodic coefficients;
具周期系数时滞差分方程的全局渐近稳定性
3.
The coupled linear partial differential equations with periodic coefficients are derived using the Newton method.
利用牛顿法推导了带周期系数的线性偏微分方程；用Ｇａｌｅｒｋｉｎ有限元素法离散该方程的空间变量；运用基于Ｆｌｏｑｕｅｔ理论的Ｈｓｕ近似法及坐标变换——常系数近似法处理周期系数。
6) periodic numbers
周期数
1.
Necessary condition of periodic numbers in 3N+1 conjecture;
3N+1猜想中周期数存在的必要条件
补充资料：数不胜数
1.数也数不清。形容很多。
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