级数

Population is increasing in that country in a geometric progression.

那个国家的人口正以几何级数增长。

Objective To explore the relationship between the illuminance and the observed order of reaction of photodegradation of nitrofurazone solution.

摘要目的研西林水溶液光解反应的表观反应级数和光照度的关系。

With growth rate photograph of slow road carrying capacity is compared, the growth of the car shows growth of progressional in successive years.

和增长速度缓慢的道路承载能力相比,汽车的增长呈级数的连年增长。

By proving properties of demicontinuous function and series with function terms, use methods of finite coveting theorem and its application in proving problems are introduced.

通过半连续函数函数项级数等有关性质的证明,介绍了有限覆盖定理的使用方法,说明了它在证明问题中的作用。

By using the method of coordination transformation and expandedness Fourier series, an analytic solution is obtained from studying the Newtonian fluids laminar flow in eccentric anulus.

采用坐标变换和函数展开成傅立叶级数的方法,出了牛顿流体偏心环空轴向流动速度场的严格数学解析解.

A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.

用比较直接的方法证明幂级数的和函数在收敛域内可以逐项微分的公式；并得到了计算傅立叶系数的一种简便方法.