有符号的除法要耗费更多的时间，因为除法是使最终结果趋向于零的，而移位则是趋向于负无穷。
The signed division will take more time to execute because it rounds towards zero, while a shift rounds towards minus infinity.
拟移位映射是符号空间上一类特殊的混沌映射，被广泛关注。
Model shift maps is a class of special chaotic maps on symbolic space and received much attention.
摘要：拟移位映射是符号空间上一类特殊的混沌映射，被广泛关注。
Abstract: Model shift maps is a class of special chaotic maps on symbolic space and received much attention.
本文讨论了符号动力系统子移位的弱混沌，并得到拓扑熵为零的弱混沌子移位。
In this paper, we study weakly chaos on sub-shift of symbol dynamical system, and give a weakly chaotic sub-shift whose topological entropy is zero.
本文讨论了符号动力系统子移位的弱混沌，并得到拓扑熵为零的弱混沌子移位。
In this paper, we study weakly chaos on sub-shift of symbol dynamical system, and give a weakly chaotic sub-shift whose topological entropy is zero.
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