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Slide 12.1.1 In the last lecture, we introduced mutation as a component of 6001s|cP our data structures We saw for example that set was a Environment mode way of changing the value associated with a variable in our system, and we saw that set-car! and set-cdr! were ways of changing the values of parts of list structure Now, several important things happened when we introduced
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6.001 Structure and Interpretation of Computer Programs. Copyright o 2004 by Massachusetts Institute of Technology 6.001 Notes: Section 4.1 Slide 4.1.1 Today ' s topics In this lecture, we are going to take a careful look at the kinds
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一块含0.1%C的碳钢在930℃渗碳,渗到0.05cm的地方碳的浓度 达到0.45%。在t>0的全部时间,渗碳气氛保持表面成分为 1%,假设D=2.0×10-5exp(-10000/RT)(m2/s)
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Part I: Fill-In-The-Blanks(10\2=20 points) 1. The branch of accounting which aims at serving external users is called accounting 2. A credit entry decreases asset and accounts or increases liabi owner's equity, and revenue accounts
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16.61 Aerospace Dynamics Spring 2003 Example Given: Catapult rotating at a constant rate(frictionless, in the horizontal plane) Find the eom of the particle as it leaves the
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ECTURE +2 RIGId BoDY DYNAnIC 工Ap1CAT105FA。R工 GENERAL ROTATIONAL JYNMICS EULER'S EQuATIoN of MOTIoN TORQVE fREE SPECIAL CAsEs PRIMARY LESSONS 3D RoTATONAL MOTION MUCH MORE COMPLEX
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一、光程 光在真空中的速度c=1s= 光在介质中的速度=1/√ec-n
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flow networks Definition. A flow network is a directed graph G=(, E)with two distinguished vertices:a source s and a sink t. Each edge(u, v)E E has a nonnegative capacity c(u, v). If(u, v) E, then c(u, v)=0 Example: c 2001 by Charles E Leiserson
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Shortest paths Single-source shortest paths nonnegative edge weights Dijkstra's algorithm: O(E+ vlg n General
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ORGANIC CHEMISTRY The first question we need to ask ourselves s What is“ Organic Chemistry\?
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