4)可以证明:厄米算符的本征矢满足完备性条件, ∑|)(l=1 或∫d)(|=1 或∑1+」d1f=1 构成H语ert空间的一组正交归一的基矢。 5.两组基矢之间的变换(表象变换) 正如在3维空间中可选择直角坐标系,也可以选择球坐标系、柱坐标系一样

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L Matching: (20%) Directions: Read the essay below. The topic sentence of each paragraph is missing. Now look at the topic sentences a, b, c, d and e that followed the essay and match four of them with the paragraph

Name: L Write down the chinese meanings of the following words:( 50%) 1. receipt purp 3. manuf acture 4. marvelous 5. mild

Unit Two Text A l. Pre-reading Task ll. Related\\ Information lll. Outline& Summary IV. Detailed Study V. Home Assignment

L. Introduction 1. Introductory Remarks The pace of scientific and technological progress appears to speed up all the time. New inventions appear and quickly make hundreds of existing devices and procedures out of date. The computer technology is just one of the few most exciting current scientific

Unit Seven Text B l. Pre-reading Task ll. Related Information Ill. Detailed Study IV. Outline& Summary V. Home Assignment

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MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Electrical Engineering and Computer Science 6.003: Signals and Systems-Fall 2003 PROBLEM SET 1 SOLUTIONS (E1)(O&W154) (a) For the r=l case, we have