爱尔兰精灵单机版下载

本書討論了一些源自日常生活的數(shù)學問題，用數(shù)學思維和計算機思維，講解了巧妙的解題思路。一個個看似簡單的問題，細究后卻發(fā)現(xiàn)別有洞天。本書會帶領讀者一起來到數(shù)學研究的前沿陣地，享受思考的樂趣，感受數(shù)學的奧妙。讀者在探究問題的過程中，可以學習和培養(yǎng)巧妙的數(shù)學思維和計算機思維，靈活應用知識，用四兩撥千斤之巧力去解決生活、學習以及工程問題。本書是一本標新立異又具有思想深度的思維訓練書，適合理工科專業(yè)的本科生、研究生，以及對數(shù)學、計算機有興趣的讀者閱讀。

·6.3萬字

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燒掉數(shù)學書：重新發(fā)明數(shù)學

《燒掉數(shù)學書》是一本全新概念的數(shù)學科普。這本書的一大特點是拋開傳統(tǒng)晦澀的數(shù)學符號和講述方式，另起爐灶，從零開始，用年輕人易于接受的語言闡釋高深的數(shù)學知識和概念。這本書打破了數(shù)學教育界認為在講授微積分之前必須花大量時間和精力學習微積分的嚴格化基礎的慣例，從理解微積分本身的用途和方法著手，反過來再提出微積分基礎嚴格化的問題，從而順理成章地引出極限和逼近等概念。這種方法更符合人們的學習和認知規(guī)律，讓人能自然而然地接受和理解這些抽象的概念和技巧的源流和必要性，從而為深入的學習打下好的基礎。

·21.7萬字

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寫給青少年的數(shù)學故事（下）：幾何妙想

幾何是數(shù)學學習的基礎之一，借助幾何學，我們能搭建房屋、丈量土地、觀測星空，還能設計滑梯、裝飾地板……連一副小小的七巧板都能催生出眾多數(shù)學成果。本書從建筑、測量、圖形游戲等角度講述了有趣的幾何小故事，不僅涉及直線形、圓、非圓曲線、立體幾何等基礎幾何學知識，而且加入了圖論、拓撲、組合幾何、非歐幾何等主題，“擴大”了美妙的幾何世界。本書闡釋了幾何學知識，同時介紹了古今中外關于幾何的逸聞趣事，展現(xiàn)了圖與形的自然之美。本書尤其適合小學高年級學生和中學生閱讀。

·10.3萬字

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武俠數(shù)學

石器時代的原始人怎樣數(shù)數(shù)？零和阿拉伯數(shù)字是怎樣產(chǎn)生并傳入中國的？古人怎樣理解小數(shù)和負數(shù)？祖沖之用什么工具推算圓周率？數(shù)學的推算有什么實際功能，能帶來什么樣的樂趣？古代中國的數(shù)學在當時世界上有何獨特之處，與現(xiàn)代數(shù)學課堂有哪些不同？這些問題，都可以由郭靖、黃蓉、楊過、小龍女等武俠人物來作答。鑒于計算機編程方興未艾，許多省份的高考數(shù)學和中考數(shù)學試卷都將編程納入考點，本書里也有一些用計算機編程解決傳統(tǒng)數(shù)學問題的示例，讓沒有接觸過編程的讀者初步了解程序思維的妙用。

·8.8萬字

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不焦慮的數(shù)學：孩子怎么學，家長怎么教

本書講述了小學和初中階段數(shù)學學習法、學習習慣和解題思路，針對計算能力提升、知識難點講解、數(shù)學思想應用和培養(yǎng)，為小學和初中階段家長提升家庭輔助教育水平，以及初中學生實現(xiàn)自學與自練，提供了切實可行、容易上手的方法和思路，解決數(shù)學學習和教育中的種種困難，讓大家不再盲從和焦慮。本書適合小學和初中階段的家長和數(shù)學教師閱讀，亦可作為學生本人提升數(shù)學水平的指導。

·18.1萬字

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Digital Forensics with Kali Linux

Thisbookistargetedatforensicsanddigitalinvestigators,securityanalysts,oranystakeholderinterestedinlearningdigitalforensicsusingKaliLinux.BasicknowledgeofKaliLinuxwillbeanadvantage.

·3.6萬字

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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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Blockchain Quick Reference

BlockchainQuickReferencetakesyouthroughtheelectrifyingworldofblockchaintechnologyandisdesignedforthosewhowanttopolishtheirexistingknowledgeregardingthevariouspillarsoftheblockchainecosystem.Thisbookisyourgo-toguide,teachingyouhowtoapplyprinciplesandideasformakingyourlifeandbusinessbetter.Youwillcoverthearchitecture,InitialCoinOfferings(ICOs),tokens,smartcontracts,andterminologiesoftheblockchaintechnology,beforestudyinghowtheywork.Allyouneedisacuriousmindtogetstartedwithblockchaintechnology.Onceyouhavegraspedthebasics,youwillexplorecomponentsofEthereum,suchasethertokens,transactions,andsmartcontracts,inordertobuildsimpleDapps.YouwillthenmoveontolearningwhySolidityisusedspecificallyforEthereum-basedprojects,followedbyexploringdifferenttypesofblockchainwitheasy-to-followexamples.Allthiswillhelpyoutacklechallengesandproblems.Bytheendofthisbook,youwillnotonlyhavesolvedcurrentandfutureproblemsrelatingtoblockchaintechnologybutwillalsobeabletobuildefficientdecentralizedapplications.

·7.9萬字

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The Modern C# Challenge

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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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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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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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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Improving your C# Skills

ThisLearningPathshowsyouhowtocreatehighperformingapplicationsandsolveprogrammingchallengesusingawiderangeofC#features.You’llbeginbylearninghowtoidentifythebottlenecksinwritingprograms,highlightcommonperformancepitfalls,andapplystrategiestodetectandresolvetheseissuesearly.You'llalsostudytheimportanceofmicro-servicesarchitectureforbuildingfastapplicationsandimplementingresiliencyandsecurityin.NETCore.Then,you'llstudytheimportanceofdefiningandtestingboundaries,abstractingawaythird-partycode,andworkingwithdifferenttypesoftestdouble,suchasspies,mocks,andfakes.Inadditiontodescribingprogrammingtrade-offs,thisLearningPathwillalsohelpyoubuildausefultoolkitoftechniques,includingvaluecaching,statisticalanalysis,andgeometricalgorithms.ThisLearningPathincludescontentfromthefollowingPacktproducts:C#7and.NETCore2.0HighPerformancebyOvaisMehboobAhmedKhan.PracticalTest-DrivenDevelopmentusingC#7byJohnCallaway,ClaytonHunt.TheModernC#ChallengebyRodStephens.

·12萬字

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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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Mastering Ethereum

Ethereumisoneofthecommonlyusedplatformsforbuildingblockchainapplications.It'sadecentralizedplatformforapplicationsthatcanrunexactlyasprogrammedwithoutbeingaffectedbyfraud,censorship,orthird-partyinterference.Thisbookwillgiveyouadeepunderstandingofhowblockchainworkssothatyoucandiscovertheentireecosystem,corecomponents,anditsimplementations.YouwillgetstartedbyunderstandinghowtoconfigureandworkwithvariousEthereumprotocolsfordevelopingdApps.Next,youwilllearntocodeandcreatepowerfulsmartcontractsthatscalewithSolidityandVyper.YouwillthenexplorethebuildingblocksofthedAppsarchitecture,andgaininsightsonhowtocreateyourowndAppthroughavarietyofreal-worldexamples.ThebookwillevenguideyouonhowtodeployyourdAppsonmultipleEthereuminstanceswiththerequiredbestpracticesandtechniques.Thenextfewchapterswilldelveintoadvancedtopicssuchas,buildingadvancedsmartcontractsandmulti-pagefrontendsusingEthereumblockchain.Youwillalsofocusonimplementingmachinelearningtechniquestobuilddecentralizedautonomousapplications,inadditiontocoveringseveralusecasesacrossavarietyofdomainssuchas,socialmediaande-commerce.Bytheendofthisbook,youwillhavetheexpertiseyouneedtobuilddecentralizedautonomousapplicationsconfidently.

·10.3萬字

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Advanced Blockchain Development

Blockchaintechnologyisadistributedledgerwithapplicationsinindustriessuchasfinance,government,andmedia.ThisLearningPathisyourguidetobuildingblockchainnetworksusingEthereum,JavaScript,andSolidity.Youwillgetstartedbyunderstandingthetechnicalfoundationsofblockchaintechnology,includingdistributedsystems,cryptographyandhowthisdigitalledgerkeepsdatasecure.Furtherintothechapters,you’llgaininsightsintodevelopingapplicationsusingEthereumandHyperledger.AsyoubuildonyourknowledgeofEthersecurity,mining,smartcontracts,andSolidity,you’lllearnhowtocreaterobustandsecureapplicationsthatrunexactlyasprogrammedwithoutbeingaffectedbyfraud,censorship,orthird-partyinterference.Towardtheconcludingchapters,you’llexplorehowblockchainsolutionscanbeimplementedinapplicationssuchasIoTapps,inadditiontoitsuseincurrencies.TheLearningPathwillalsohighlighthowyoucanincreaseblockchainscalabilityandevendiscussesthefuturescopeofthisfascinatingandpowerfultechnology.BytheendofthisLearningPath,you'llbeequippedwiththeskillsyouneedtotacklepainpointsencounteredintheblockchainlifecycleandconfidentlydesignanddeploydecentralizedapplications.ThisLearningPathincludescontentfromthefollowingPacktproducts:MasteringBlockchain-SecondEditionbyImranBashir.BuildingBlockchainProjectsbyNarayanPrusty.

·13.2萬字

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利用Python輕松學數(shù)學

本書將Python編程的基本知識和中小學數(shù)學知識緊密結合起來，在介紹Python知識的同時穿插數(shù)學趣題和難題的講解，以引導讀者從一個全新的角度來看待編程、體驗編程和學習編程，培養(yǎng)中小學生的計算思維和編程思維。全書共13章，主要內(nèi)容包括Python的基本數(shù)據(jù)類型，基本編程知識，數(shù)軸、坐標系和平面幾何圖形，日期和時間，順序語句，條件語句和循環(huán)語句，函數(shù)等。另外，本書配有同步視頻講解，讀者可以將本書與視頻結合起來更直觀地學習，從而提高學習效率。

·6.2萬字

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數(shù)學原來可以這樣學：初中篇

打破“數(shù)學無用、數(shù)學就是背公式”的誤解，重新打通你的思考邏輯。學數(shù)學不是只有背公式、也不是只有解方程式，更不是只有一堆復雜難懂的數(shù)字與符號，而是透過學習演算的過程，幫助你深度思考，鍛煉出更強的邏輯思維能力，找到解決問題的飛躍性方法。初中數(shù)學，可以鍛煉未來所需的全部思考力：（1）自我驅(qū)動力（2）多段思考力（3）質(zhì)疑力（4）大局力（5）場合分辨力（6）躍升力。跟隨本書學習初中數(shù)學，會體會到超重要的思考方式，讓你的思考從無序、混亂、令人沮喪，到具有決定性的解析思維能力！你只是沒用對方法學初中數(shù)學：本書通過輕松幽默的對話、生活化的舉例，引導對數(shù)學有畏懼情緒的你，試著從數(shù)學的角度思考生活中的問題，激發(fā)你的思考耐力、邏輯力。自認不擅長數(shù)學的你會在閱讀本書時發(fā)現(xiàn)，思考的練習竟然能讓你欲罷不能。跟著本書以最快的速度、最短的路徑學習初中數(shù)學吧：通常情況下，學生學數(shù)學的時候，不知道終點在哪里，只是按照教材、老師的指導，逐一攻破各個單元。初中數(shù)學的學習單元多達幾十個，為了在最短的時間里掌握數(shù)學知識，作者將初中數(shù)學分為三大范疇，即“數(shù)和式”（代數(shù)）、“圖像”（分析）和“圖形”（幾何），并為每個范疇設定了大boss（最終目標），帶你一一通關：一下子掌握初中數(shù)學的頂點——二次方程式；瞬間理解初中數(shù)學中的函數(shù)；游刃有余！輕松掌握初中數(shù)學中的圖形；特別課程：體驗數(shù)學的最高峰——微積分。

·7.2萬字

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特殊函數(shù)概論習題解答

本書是《特殊函數(shù)概論》的習題解答，講述了一些主要的特殊函數(shù)，如超幾何函數(shù)、勒讓德函數(shù)、合流超幾何函數(shù)、貝塞耳函數(shù)、橢圓函數(shù)、橢球諧函數(shù)、馬丟函數(shù)。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。

·0字

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幾何原本

本書先后論述了平面幾何的基本原理、圓、比例論、相似圖形、初等數(shù)論、簡單立體幾何以及正多面體等內(nèi)容。書中每卷在一開始會給出定義、公設和公理，然后用這些定義和公理及證明過的命題，對各種幾何圖形的性質(zhì)進行研究，展示了一套邏輯體系嚴密的幾何學論證方法。

·29.4萬字

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