查询词典 field of rational functions

And we know by study, so long as system is controllable and observable at the structure over the field F(z of the rational functions in multi-parameters, it is always controllable and observable over the field R of real numbers.

通过研究我们知道，一个系统只要在结构上多元有理函数域(F上是能控能观的，则意味着实数域上该系统实际上总是能控能观的。

While analyzing controllability and observability of system over the field F of the rational functions in multi-parameters, we must use the algebraic criteria.

在分析F上系统的能控能观性时，要应用其代数判据，这就要首先求出其F上状态方程系。

The workload is enormous and it is very difficult to guarantee the exactness of the result, so it is very valuable to develop a set of computer-assisted software for founding the state equations and analyzing the correlative properties of system over the field F of the rational functions in multi-parameters.

因此，开发一套建立F上系统状态方程系并能进行相关性质分析的计算机辅助软件便极有价值。

For any RLC electric network given, the software can found its state equation over the field F of the rational functions in multi-parameters very swiftly and effectively, and can analyze its controllability automatically. Moreover there is not any additive restriction for its complexity.

对任意给定的RLC电网络均能十分快捷有效地生成其在F上的状态方程，并能对其能控性进行自动分析判别，而对其复杂程度没有任何附加限制。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。