万倍捕鱼

C#isamulti-paradigmprogramminglanguage.TheModernC#Challengecoverswithaspectsofthe.NETFrameworksuchastheTaskParallelLibrary(TPL)andCryptoAPI.Italsoencouragesyoutoexploreimportantprogrammingtrade-offssuchastimeversusspaceorsimplicity.Theremaybemanywaystosolveaproblemandthereisoftennosinglerightway,butsomesolutionsaredefinitelybetterthanothers.Thisbookhascombinedthesesolutionstohelpyousolvereal-worldproblemswithC#.Inadditiontodescribingprogrammingtrade-offs,TheModernC#Challengewillhelpyoubuildausefultoolkitoftechniquessuchasvaluecaching,statisticalanalysis,andgeometricalgorithms.Bytheendofthisbook,youwillhavewalkedthroughchallengesinC#andexploredthe.NETFrameworkinordertodevelopprogramlogicforreal-worldapplications.

·7.7萬字

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可視化微分幾何和形式：一部五幕數學正劇

本書以五幕數學劇的形式直觀地講述微分幾何和微分形式，包括“空間的實質”“度量”“曲率”“平行移動”和“微分形式”。在前四幕中，作者把“微分幾何”回歸為“幾何”，使用200多幅手繪示意圖，運用牛頓的幾何方法對經典結果做出了幾何解釋。在第五幕中，作者介紹了微分形式，以直觀的幾何方式處理高級主題。本書作者挑戰性地重新思考了微分幾何和微分形式這個重要數學領域的教學方式，只需要基本的微積分和幾何學知識即可閱讀本書。

·30.2萬字

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特殊函數概論習題解答

本書是《特殊函數概論》的習題解答，講述了一些主要的特殊函數，如超幾何函數、勒讓德函數、合流超幾何函數、貝塞耳函數、橢圓函數、橢球諧函數、馬丟函數。作者不僅解答了原著中的所有習題，還對原著中存在的很多錯誤進行了糾正。

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Hands-On IoT Solutions with Blockchain

Blockchainhasbeenthehottopicoflatethankstocryptocurrencies.Tomakemattersmoreinteresting,thefinancialmarketislookingforwaystoreduceoperationalcostsandgeneratenewbusinessmodels,andthisiswhereblockchainsolutionscomeintothepicture.Inadditiontothis,withInternetofThings(IoT)trendingandArduino,RaspberryPi,andotherdevicesfloodingthemarket,youcannowcreatecheapdevicesevenathome.Hands-OnIoTSolutionswithBlockchainstartswithanoverviewofIoTconceptsinthecurrentbusinessscenario.ItthenhelpsyoudevelopyourowndeviceontheIBMWatsonIoTplatformandcreateyourfirstIoTsolutionusingWatsonandIntelEdison.OnceyouarefamiliarwithIoT,youwilllearnaboutBlockchaintechnologyanditsusecases.YouwillalsoworkwiththeHyperledgerframeworkanddevelopyourownBlockchainnetwork.Asyouprogressthroughthechapters,you'llworkwithproblemstatementsandlearnhowtodesignyoursolutionarchitecturesothatyoucancreateyourownintegratedBlockchainandIoTsolution.Thenextsetofchapterswillexplainhowtoimplementend-to-endBlockchainsolutionswithIoTusingtheIBMCloudplatform.Bytheendofthisbook,youwillhavemasteredtheconvergenceofIoTandBlockchaintechnologyandexploitedthebestpracticesanddriverstodevelopabulletproofintegratedsolution.

·3.3萬字

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科學的數學本質

首先，本書運用歷史和邏輯的方法，闡釋數學是科學研究的先導。除了對數論、代數、幾何學、微積分、拓撲學、概率論和統計學等數學基礎理論的發展進行概括說明外，還探討了數學在科學理論中的哲學問題，如數學的本質與存在問題，以及數學與物理現實的關系。其次，本書通過實例說明數學在自然科學、工程技術中的應用及其與其他學科的交叉研究，回答了科研實踐中的關鍵問題，包括：哪些數學工具和方法在科學研究中應用？如何利用數學方法進行有效的數據分析？如何應用數學理論進行實驗設計？等等。本書具有廣泛的目標讀者，適合各學科的科研人員、大學生和研究生，以及對科學研究方法和數學應用感興趣的廣大讀者群體。

·30.5萬字

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Data Visualization：a successful design process

Acomprehensiveyetquickguidetothebestapproachestodesigningdatavisualizations,withrealexamplesandillustrativediagrams.Whateverthedesiredoutcomeensuresuccessbyfollowingthisexpertdesignprocess.Thisbookisforanyonewhohasresponsibilityfor,orisinterestedintryingtofindinnovativeandeffectivewaystovisuallyanalyzeandcommunicatedata.Thereisnoskill,noknowledgeandnorole-basedpre-requisitesorexpectationsofanyonereadingthisbook.

·5.1萬字

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Blockchain for Enterprise

Theincreasinggrowthinblockchainuseisenormous,anditischangingthewaybusinessisdone.Manyleadingorganizationsarealreadyexploringthepotentialofblockchain.Withthisbook,youwilllearntobuildend-to-endenterprise-leveldecentralizedapplicationsandscalethemacrossyourorganizationtomeetyourcompany'sneeds.ThisbookwillhelpyouunderstandwhatDAppsareandhowtheblockchainecosystemworks,viareal-worldexamples.Thisextensiveend-to-endbookcoverseveryblockchainaspectforbusinessandfordevelopers.Youwillmasterprocessflowsandincorporatethemintoyourownenterprise.YouwilllearnhowtouseJ.P.Morgan’sQuorumtobuildblockchain-basedapplications.Youwillalsolearnhowtowriteapplicationsthatcanhelpcommunicateenterpriseblockchainsolutions.Youwilllearnhowtowritesmartcontractsthatrunwithoutcensorshipandthird-partyinterference.Onceyou'vegraspedwhatablockchainisandhavelearnedaboutQuorum,youwilljumpintobuildingreal-worldpracticalblockchainapplicationsforsectorssuchaspaymentandmoneytransfer,healthcare,cloudcomputing,supplychainmanagement,andmuchmore.

·4.9萬字

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Hands-On Blockchain with Hyperledger

BBlockchainandHyperledgertechnologiesarehottopicstoday.HyperledgerFabricandHyperledgerComposerareopensourceprojectsthathelporganizationscreateprivate,permissionedblockchainnetworks.Thesefindapplicationinfinance,banking,supplychain,andIoTamongseveralothersectors.ThisbookwillbeaneasyreferencetoexploreandbuildblockchainnetworksusingHyperledgertechnologies.Thebookstartsbyoutliningtheevolutionofblockchain,includinganoverviewofrelevantblockchaintechnologies.YouwilllearnhowtoconfigureHyperledgerFabricandbecomefamiliarwithitsarchitecturalcomponents.Usingthesecomponents,youwilllearntobuildprivateblockchainnetworks,alongwiththeapplicationsthatconnecttothem.Startingfromprinciplesfirst,you’lllearntodesignandlaunchanetwork,implementsmartcontractsinchaincodeandmuchmore.Bytheendofthisbook,youwillbeabletobuildanddeployyourowndecentralizedapplications,handlingthekeypainpointsencounteredintheblockchainlifecycle.

·10.8萬字

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Hands-On Cryptography with Python

Hands-OnCryptographywithPythonisforsecurityprofessionalswhowanttolearntoencryptandevaluatedata,andcomparedifferentencryptionmethods.

·1.6萬字

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Hyperledger Cookbook

Hyperledgerisanopen-sourceprojectandcreatesprivateblockchainapplicationsforarangeofdomains.Thisbookwillbeyourdeskreferenceasyouexplorecommonandnot-so-commonchallengesfacedwhilebuildingblockchainnetworksusingHyperledgerservices.We'llworkthroughallHyperledgerplatformmodulestounderstandtheirservicesandfeaturesandbuildend-to-endblockchainapplicationsusingvariousframeworksandtoolssupportedbyHyperledger.Thisbook'sindependent,recipe-basedapproach(packedwithreal-worldexamples)willfamiliarizeyouwiththeblockchaindevelopmentcycle.Frommodelingabusinessnetworktointegratingwithvarioustools,youwillcoveritall.We'llcovercommonandnot-so-commonchallengesfacedintheblockchainlifecycle.Later,we'lldelveintohowwecaninteractwiththeHyperledgerFabricblockchain,coveringalltheprinciplesyouneedtomaster,suchaschaincode,smartcontracts,andmuchmore.We'llalsoaddressthescalabilityandsecurityissuescurrentlyfacedinblockchaindevelopment.Bytheendofthisbook,youwillbeabletoimplementeachrecipetoplan,design,andcreateafull-fledged,private,decentralizedapplicationtomeetorganizationalneeds.

·4.9萬字

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Hands-On Blockchain for Python Developers

Blockchainisseenasthemaintechnologicalsolutionthatworksasapublicledgerforallcryptocurrencytransactions.Thisbookservesasapracticalguidetodevelopingafull-fledgeddecentralizedapplicationwithPythontointeractwiththevariousbuildingblocksofblockchainapplications.Hands-OnBlockchainforPythonDevelopersstartsbydemonstratinghowblockchaintechnologyandcryptocurrencyhashingworks.Youwillunderstandthefundamentalsandbenefitsofsmartcontractssuchascensorshipresistanceandtransactionaccuracy.Asyousteadilyprogress,you'llgoontobuildsmartcontractsusingVyper,whichhasasimilarsyntaxtoPython.Thisexperiencewillfurtherhelpyouunraveltheotherbenefitsofsmartcontracts,includingreliablestorageandbackup,andefficiency.You'llalsouseweb3.pytointeractwithsmartcontractsandleveragethepowerofboththeweb3.pyandPopulusframeworktobuilddecentralizedapplicationsthatoffersecurityandseamlessintegrationwithcryptocurrencies.Asyouexplorelaterchapters,you'lllearnhowtocreateyourowntokenontopofEthereumandbuildacryptocurrencywalletgraphicaluserinterface(GUI)thatcanhandleEthereumandEthereumRequestforComments(ERC-20)tokensusingthePySide2library.Thiswillenableuserstoseamlesslystore,send,andreceivedigitalmoney.Towardtheend,you'llimplementInterPlanetaryFileSystem(IPFS)technologyinyourdecentralizedapplicationtoprovideapeer-to-peerfilesystemthatcanstoreandexposemedia.Bytheendofthisbook,you'llbewell-versedinblockchainprogrammingandbeabletobuildend-to-enddecentralizedapplicationsonarangeofdomainsusingPython.

·8.8萬字

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Ethereum Smart Contract Development

IfyouwanttoknowtheinsandoutsoftheEthereumnetworkandbuildyourowndecentralizedapplications,thenthisbookiswhatyouneed!ThisbookisforanyonewhoisinterestedinblockchainandwantstobecomeanEthereumdeveloper.It’sidealforexistingEthereumdeveloperswhowanttodevelopEthereumusingsmartcontracts.Basicknowledgeofcryptographyisexpectedbutisnotmandatory.

·5.3萬字

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Blockchain for Business 2019

BlockchainforBusiness2019isacomprehensiveguidethatenablesyoutobringinvariousblockchainfunctionalitiestoextendyourexistingbusinessmodelsandmakecorrectfully-informeddecisions.Youwilllearnhowdecentralizedapplicationsaretransformingnumerousbusinesssectorsthatareexpectedtoplayahugeroleinthefuture.Youwillseehowlargecorporationsarealreadyimplementingblockchaintechnologynow.Youwillthenlearnaboutthevariousblockchainservices,suchasBitcoin,Ethereum,Hyperledger,andotherstounderstandtheirusecasesinavarietyofbusinessdomains.Youwilldevelopasolidfundamentalunderstandingofblockchainarchitecture.Movingahead,youwillgettogripswiththeinnerworkingsofblockchain,withdetailedexplanationsofmining,decentralizedconsensus,cryptography,smartcontracts,andmanyotherimportantconcepts.Youwilldelveintoarealisticviewofthecurrentstateofblockchaintechnology,alongwithitsissues,limitations,andpotentialsolutionsthatcantakeittothenextlevel.Bytheendofthisbook,youwillallbewellversedinthelatestinnovationsanddevelopmentsintheemergingblockchainspace.

·6萬字

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Foundations of Blockchain

Blockchaintechnologyisacombinationofthreepopularconcepts:cryptography,peer-to-peernetworking,andgametheory.Thisbookisforanyonewhowantstodiveintoblockchainfromfirstprinciplesandlearnhowdecentralizedapplicationsandcryptocurrenciesreallywork.Thisbookbeginswithanoverviewofblockchaintechnology,includingkeydefinitions,itspurposesandcharacteristics,soyoucanassessthefullpotentialofblockchain.Allessentialaspectsofcryptographyarethenpresented,asthebackboneofblockchain.Forreaderswhowanttostudytheunderlyingalgorithmsofblockchain,you’llseePythonimplementationsthroughout.You’llthenlearnhowblockchainarchitecturecancreatedecentralizedapplications.You’llseehowblockchainachievesdecentralizationthroughpeer-to-peernetworking,andhowasimpleblockchaincanbebuiltinaP2Pnetwork.You’lllearnhowtheseelementscanimplementacryptocurrencysuchasBitcoin,andthewiderapplicationsofblockchainworkthroughsmartcontracts.Blockchainoptimizationtechniques,andblockchainsecuritystrategiesarethenpresented.Tocompletethisfoundation,weconsiderblockchainapplicationsinthefinancialandnon-financialsectors,andalsoanalyzethefutureofblockchain.Astudyofblockchainusecasesincludessupplychains,paymentsystems,crowdfunding,andDAOs,whichroundsoutyourfoundationinblockchaintechnology.

·9.2萬字

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Blockchain Developer's Guide

Blockchainapplicationsprovideasingle-sharedledgertoeliminatetrustissuesinvolvingmultiplestakeholders.ItisthemaintechnicalinnovationofBitcoin,whereitservesasthepublicledgerforBitcointransactions.BlockchainDeveloper'sGuidetakesyouthroughtheelectrifyingworldofblockchaintechnology.Itbeginswiththebasicdesignofablockchainandelaboratesconcepts,suchasInitialCoinOfferings(ICOs),tokens,smartcontracts,andotherrelatedterminologies.YouwillthenexplorethecomponentsofEthereum,suchasEthertokens,transactions,andsmartcontractsthatyouneedtobuildsimpleDApps.BlockchainDeveloper'sGuidealsoexplainswhyyoumustspecificallyuseSolidityforEthereum-basedprojectsandletsyouexploredifferentblockchainswitheasy-to-followexamples.Youwilllearnawiderangeofconcepts-beginningwithcryptographyincryptocurrenciesandincludingethersecurity,mining,andsmartcontracts.YouwilllearnhowtousewebsocketsandvariousAPIservicesforEthereum.BytheendofthisLearningPath,youwillbeabletobuildefficientdecentralizedapplications.ThisLearningPathincludescontentfromthefollowingPacktproducts:BlockchainQuickReferencebyBrennHill,SamanyuChopra,PaulValencourt.BuildingBlockchainProjectsbyNarayanPrusty.

·12.5萬字

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Security Tokens and Stablecoins Quick Start Guide

Thefailureofinitialcoinofferings(ICOs)isnoaccident,asmostICOsdonotlinktoarealassetandarenotregulated.RealizingtheshortcomingsofICOs,theblockchaincommunityandpotentialinvestorsembracedsecuritytokenofferings(STOs)andstablecoinsenthusiastically.Inthisbook,westartwithanoverviewoftheblockchaintechnologyalongwithitsbasicconcepts.WeintroducetheconceptbehindSTO,andcoverthebasicrequirementsforlaunchingaSTOandtherelevantregulationsgoverningitsissuance.WediscussU.S.securitieslawsdevelopmentinlaunchingsecuritydigitaltokensusingblockchaintechnologyandshowsomerealusecases.WealsoexploretheprocessofSTOlaunchesandlegalconsiderations.WeintroducepopularsecuritytokensinthecurrentblockchainspaceandtalkabouthowtodevelopasecuritytokenDApp,includingsmartcontractdevelopmentforERC1404tokens.Later,you'lllearntobuildfrontendsidefunctionalitiestointeractwithsmartcontracts.Finally,wediscussstablecointechnicaldesignfunctionalitiesforissuingandoperatingSTOtokensbyinteractingwithEthereumsmartcontracts.Bytheendofthisbook,youwillhavelearnedmoreaboutSTOsandgainedadetailedknowledgeofbuildingrelevantapplications—allwiththehelpofpracticalexamples.

·5.6萬字

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錢敏數學文選

本書收錄了《馬爾可夫半群的不變測度與遍歷性》《非自治系統的不變圈（解流形）分支》《MinimalCoupledDiffusionProcess》《GeneralizedWeylTransformation》等文章。

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The Modern C# Challenge