王者棋牌赌博软件

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

·6.3萬字

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燒掉數(shù)學(xué)書：重新發(fā)明數(shù)學(xué)

《燒掉數(shù)學(xué)書》是一本全新概念的數(shù)學(xué)科普。這本書的一大特點(diǎn)是拋開傳統(tǒng)晦澀的數(shù)學(xué)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(xué)知識和概念。這本書打破了數(shù)學(xué)教育界認(rèn)為在講授微積分之前必須花大量時間和精力學(xué)習(xí)微積分的嚴(yán)格化基礎(chǔ)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(chǔ)嚴(yán)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(xué)習(xí)和認(rèn)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(xué)習(xí)打下好的基礎(chǔ)。

·21.7萬字

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寫給青少年的數(shù)學(xué)故事（下）：幾何妙想

幾何是數(shù)學(xué)學(xué)習(xí)的基礎(chǔ)之一，借助幾何學(xué)，我們能搭建房屋、丈量土地、觀測星空，還能設(shè)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(xué)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(chǔ)幾何學(xué)知識，而且加入了圖論、拓?fù)洹⒔M合幾何、非歐幾何等主題，“擴(kuò)大”了美妙的幾何世界。本書闡釋了幾何學(xué)知識，同時介紹了古今中外關(guān)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(xué)高年級學(xué)生和中學(xué)生閱讀。

·10.3萬字

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武俠數(shù)學(xué)

石器時代的原始人怎樣數(shù)數(shù)？零和阿拉伯?dāng)?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(fù)數(shù)？祖沖之用什么工具推算圓周率？數(shù)學(xué)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(xué)在當(dāng)時世界上有何獨(dú)特之處，與現(xiàn)代數(shù)學(xué)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(jī)編程方興未艾，許多省份的高考數(shù)學(xué)和中考數(shù)學(xué)試卷都將編程納入考點(diǎn)，本書里也有一些用計算機(jī)編程解決傳統(tǒng)數(shù)學(xué)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(xué)：孩子怎么學(xué)，家長怎么教

本書講述了小學(xué)和初中階段數(shù)學(xué)學(xué)習(xí)法、學(xué)習(xí)習(xí)慣和解題思路，針對計算能力提升、知識難點(diǎn)講解、數(shù)學(xué)思想應(yīng)用和培養(yǎng)，為小學(xué)和初中階段家長提升家庭輔助教育水平，以及初中學(xué)生實現(xiàn)自學(xué)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(xué)學(xué)習(xí)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(xué)和初中階段的家長和數(shù)學(xué)教師閱讀，亦可作為學(xué)生本人提升數(shù)學(xué)水平的指導(dǎo)。

·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

12堂魔力數(shù)學(xué)課

本書作者是美國頂級理工學(xué)院哈維姆德學(xué)院的數(shù)學(xué)教授，以讓數(shù)學(xué)變得生動有趣而聞名世界。書中，他帶領(lǐng)讀者進(jìn)行了一趟旨在展示數(shù)學(xué)的關(guān)鍵知識的奇妙旅程：數(shù)字、算數(shù)、代數(shù)、幾何、微積分，等等。通過運(yùn)用這些數(shù)學(xué)知識和思維，幫助讀者領(lǐng)略數(shù)學(xué)之美以及數(shù)學(xué)思維在現(xiàn)實生活中的神奇力量。

·13.3萬字

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利用Python輕松學(xué)數(shù)學(xué)

本書將Python編程的基本知識和中小學(xué)數(shù)學(xué)知識緊密結(jié)合起來，在介紹Python知識的同時穿插數(shù)學(xué)趣題和難題的講解，以引導(dǎo)讀者從一個全新的角度來看待編程、體驗編程和學(xué)習(xí)編程，培養(yǎng)中小學(xué)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(biāo)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(jié)合起來更直觀地學(xué)習(xí)，從而提高學(xué)習(xí)效率。

·6.2萬字

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數(shù)學(xué)原來可以這樣學(xué)：初中篇

打破“數(shù)學(xué)無用、數(shù)學(xué)就是背公式”的誤解，重新打通你的思考邏輯。學(xué)數(shù)學(xué)不是只有背公式、也不是只有解方程式，更不是只有一堆復(fù)雜難懂的數(shù)字與符號，而是透過學(xué)習(xí)演算的過程，幫助你深度思考，鍛煉出更強(qiáng)的邏輯思維能力，找到解決問題的飛躍性方法。初中數(shù)學(xué)，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(xué)習(xí)初中數(shù)學(xué)，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(xué)初中數(shù)學(xué)：本書通過輕松幽默的對話、生活化的舉例，引導(dǎo)對數(shù)學(xué)有畏懼情緒的你，試著從數(shù)學(xué)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(rèn)不擅長數(shù)學(xué)的你會在閱讀本書時發(fā)現(xiàn)，思考的練習(xí)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(xué)習(xí)初中數(shù)學(xué)吧：通常情況下，學(xué)生學(xué)數(shù)學(xué)的時候，不知道終點(diǎn)在哪里，只是按照教材、老師的指導(dǎo)，逐一攻破各個單元。初中數(shù)學(xué)的學(xué)習(xí)單元多達(dá)幾十個，為了在最短的時間里掌握數(shù)學(xué)知識，作者將初中數(shù)學(xué)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(shè)定了大boss（最終目標(biāo)），帶你一一通關(guān)：一下子掌握初中數(shù)學(xué)的頂點(diǎn)——二次方程式；瞬間理解初中數(shù)學(xué)中的函數(shù)；游刃有余！輕松掌握初中數(shù)學(xué)中的圖形；特別課程：體驗數(shù)學(xué)的最高峰——微積分。

·7.2萬字

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