概念题: 1.若下列反应中的气体是理想气体,则K=Kx=K=K的反应是 ()CaCO3 =CaO(s)+CO2(g) (2)N2O4(g)=2O2(g) (3)2n(s)+32(g)=2zno(s)+2SO2(g) (4)CO(g)+2O(g)=C2(g)+H2(g)

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NEWTONs L丹WS ① BoDY CoNTINUES玉 N TTS STATE OF MOT(0N DR REST UNLESS FORCED DI RECTIoNs IMPoRTA

abandon vt.离弃；放弃 abbreviation n.缩略语 abnormal a.反常的；变态的 abolish vt.废除 aboriginal n./a.土著(的)；土生动植物(的) abort v.取消；流产

It is nearly impossible to design a linear￾phase IIR transfer function It is always possible to design an FIR transfer function with an exact linear-phase response Consider a causal FIR transfer function H(z) of length N+1, i.e., of order N:

The output y[n] of a frequency-selective LTI discrete-time system with a frequency response exhibits some delay relative to the input x[n] caused by the nonzero phase response of the system

BIBO Stability Condition - A discrete-time LTI system is BIBO stable if the output sequence {y[n]} remains bounded for any bounded input sequence{x[n]}

数学上解薛定谔方程时,可以得到很多γ数学解, 而从物理意义上讲,这些数学解并不都是合理的, 并不是每一个数学解都能表示电子运动的一个稳定 状态。 为了得到合理的解,就要求一些物理量必须是量 子化的,从而引入三个量子数n、l、m。这三个 量子数不是任意的常数,而要符合一定的取值。 因此,所谓解薛定谔方程,就是解出对应一组 n、l、m的波函数nm及相应的能量En,一般 我们就用它来描述原子中电子的运动状态

Balanced search tree: A search-tree data structure for which a height of O(lg n) is guaranteed when implementing a dynamic set of n items

在函数项级数中,有一类十分特殊的级数,它的每一 项都是x的幂函数,即un=anx\(n∈N).我们称这种函数 项级数为幂级数