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2.1 SOME NOTATION 1. The Summation Notation X, =X1++...+n can be abbreviated as:Σx,orΣx 2. Properties of the Summation Operator
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一、简答题: 1.将模拟基带信号m()=2cos400分别以DSB及SSB下边带方式调制于载波 2cos(2×103元t)上,请画出相应已调信号的幅度频谱(标明频率)
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问题的提出 一、数据背后存在着某种规律性 二、最小二乘保证了3条性质——残差和=0,残差与自变量无关、残差与拟合值无关
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一、自感电动势自感(self-inductance) 穿过闭合电流回路的磁通量Φ=LI
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一、计算各等值过程的热量、功和内能的理论基础 (1)pV=uT(理想气体的共性)
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一、碰撞(collision) 碰撞两物体互相接触时间极短而互作用力较大的相 互作用∵F<
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一、完全竞争厂商的短期均衡 二、在短期,由于存在着不变的生产要素,因此厂商是在既定的生产规模下,通过对产量的调整来实现MR=SMC的利润最大化的均衡条件
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Outline Review of Equations of Motion Rotational Motion Equations of Motion in Rotating coordinates Euler Equations Example: Stability of Torque Free Motion Gyroscopic Motion Euler Angles Steady Precession Steady Precession with M=0 MIT
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Inertial reference frames In the previous lecture, we derived an expression that related the accelerations observed using two reference frames, A and B, which are in relative motion with respect to each other. aA =aB+(aA/ B)'y'' 22 x (DA/ B) 'y'2'+ TA/B+ X TA/B). (1) Here, aA is the acceleration of particle A observed by one observer, and
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In this lecture we will look at some applications of Newton's second law, expressed in the different coordinate systems that were introduced in lectures D3-D5. Recall that Newton's second law F=ma, (1) is a vector equation which is valid for inertial observers. In general, we will be interested in determining the motion of a particle given
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