HugeIntegerClass)CreateaclassHugeIntegerthatusesa40-elementarrayofdigitstostoreintegersaslargeas40digitseach.Providememberfunctionsinput,output,addandsubtract.ForcomparingHugeIntegerobjects,providefunctionsisEqualTo,isNotEqualTo,isGreaterThan,isLessThan,isGreaterThanOrEqualToandisLessThanOrEqualTo—eachoftheseisa“predicate”functionthatsimplyreturnstrueiftherelationshipholdsbetweenthetwoHugeIntegersandreturnsfalseiftherelationshipdoesnothold.Also,provideapredicatefunctionisZero. Ifyoufeelambitious,providememberfunctionsmultiply,divideandmodulus

引言无线传感器网络（WirelessSensorNetwork，WSN）是由大量低成本、自组织、有一定计算能力和通讯能力的传感器节点组成，可实时监测、采集网

包含已调试好的selenium、firefox与python3.6的docker镜像文件，同时有一个测试案例，可以直接运转，使用无界面firefox访问网站

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26.3文件输入

CCNPEnterpriseWirelessDesignandImplementation.pdf

Abstract—Visual-inertialSLAM(VI-SLAM)requiresagoodinitialestimationoftheinitialvelocity,orientationwithrespecttogravityandgyroscopeandaccelerometerbiases.InthispaperwebuildontheinitializationmethodproposedbyMartinelli[1]andextendedbyKaiseretal.[2],modifyingittobemoregeneralandefficient.Weimproveaccuracywithseveralroundsofvisual-inertialbundleadjustment,androbustifythemethodwithnovelobservabilityandconsensustests,thatdiscarderroneoussolutions.OurresultsontheEuRoCdatasetshowthat,whiletheoriginalmethodproducesscaleerrorsupto156%,ourmethodisabletoconsistentlyinitializeinlessthantwosecondswithscaleerrorsaround5%,whichcanbefurtherreducedtolessthan1%performingvisual-inertialbundleadjustmentaftertenseconds

作者：ProfessorKwang-ChengChen，ProfessorRamjeePrasad出书：Wiley2009目录Prefacexi1WirelessCommunications11.1WirelessCommunicationsSystems11.2OrthogonalFrequencyDivisionMultiplexing(OFDM)31.2.1OFDMConcepts41.2.2MathematicalModelofOFDMSystem51.2.3OFDMDesignIssues91.2.4OFDMA211.3MIMO241.3.1Space-TimeCodes241.3.2SpatialMultiplexingUsingAdaptiveMultipleAntennaTechniques271.3.3Open-loopMIMOSolutions271.3.4Closed-loopMIMOSolutions291.3.5MIMOReceiverStructure311.4Multi-userDetection(MUD)341.4.1Multi-user(CDMA)Receiver341.4.2SuboptimumDS/CDMAReceivers37References402SoftwareDefinedRadio412.1SoftwareDefinedRadioArchitecture412.2DigitalSignalProcessorandSDRBasebandArchitecture432.3ReconfigurableWirelessCommunicationSystems462.3.1UnifiedCommunicationAlgorithm462.3.2ReconfigurableOFDMImplementation472.3.3ReconfigurableOFDMandCDMA472.4DigitalRadioProcessing482.4.1ConventionalRF482.4.2DigitalRadioProcessing(DRP)BasedSystemArchitecture52References583WirelessNetworks593.1MultipleAccessCommunicationsandALOHA603.1.1ALOHASystemsandSlottedMultipleAccess613.1.2SlottedALOHA613.1.3StabilisedSlottedALOHA643.1.4ApproximateDelayAnalysis653.1.5UnslottedALOHA663.2SplittingAlgorithms663.2.1TreeAlgorithms673.2.2FCFSSplittingAlgorithm683.2.3AnalysisofFCFSSplittingAlgorithm693.3CarrierSensing713.3.1CSMASlottedALOHA713.3.2SlottedCSMA763.3.3CarrierSenseMultipleAccesswithCollisionDetection(CSMA/CD)793.4Routing823.4.1FloodingandBroadcasting833.4.2ShortestPathRouting833.4.3OptimalRouting833.4.4HotPotato(Reflection)Routing843.4.5Cut-throughRouting843.4.6InterconnectedNetworkRouting843.4.7ShortestPathRoutingAlgorithms843.5FlowControl893.5.1WindowFlowControl893.5.2RateControlSchemes913.5.3QueuingAnalysisoftheLeakyBucketScheme9

在日常工作中，钉钉打卡成了我生活中不可或缺的一部分。然而，有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚，我总是得牢记打开钉钉应用，点击"工作台"，再找到"考勤打卡"进行签到。有时候因为工作忙碌，会忘记打卡，导致考勤异常，影响当月的工作评价。而且，由于我使用的是苹果手机，有时候系统更新后，钉钉的某些功能会出现异常，使得打卡变得更加麻烦。 另外，我的家人使用的是安卓手机，他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说，每次打卡都是一次挑战。他们总是担心自己会操作失误，导致打卡失败。 为了解决这些烦恼，我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习，我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。