从而解决了任意一元三次方程的实数根的分布的问题。

Thus solves the distributed problem of optional simple cubic equation's real root.

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这些代数条件表示为由椭圆与抛物线，椭圆与双曲线确定的广义特征多项式的根的分布。

The algebraic condition can be represented by the distribution of the roots of the generalized characteristic equation of the ellipse and parabola (hyperbola).

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首先，通过对系统线性化方程的特征方程根的分布分析，给出了滞量对系统稳定性影响的具体结论和公式。

First locally linearizing nonlinear system at equilibrium to investigate show stability of system, obtain some practicability conclusions and formulas.

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