Therefore, on the complex plane, robust stability can be formulated by minimization of pseudospectra abscissa.

于是在复平面上，鲁棒稳定性问题就转化为伪谱横坐标（伪谱最右端的横坐标值）最小的优化问题。

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A kind of new 2 - point scheme is designed, which enriches the theory of constructing fractal sets on the complex plane.

设计一类新的两点格式，丰富了复平面上分形集构造的理论内容。

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In this paper a computer method for searching the root loci by moving real axis parallelly in the complex plane is presented.

本文介绍一种用平移实轴平面搜索法求根轨迹的计算机方法。

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Extending fractals into the plane of complex numbers followed in 1979.

ECONOMIST: Beno?t Mandelbrot

Substantially more complex than previous aircraft, the new plane required the pilot to attend to the four engines, a retractable landing gear, new wing flaps, electric trim tabs that needed adjustment to maintain control at different airspeeds, and constant-speed propellers whose pitch had to be regulated with hydraulic controls, among other features.

NEWYORKER: The Checklist

Enter the cockpit of a fighter plane and you will be amazed by the myriad arrays of display panels and complex control systems.

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