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本書以數(shù)學(xué)史上四大著名的“古代問(wèn)題”：化圓為方、三等分角、倍立方、作圓內(nèi)接正多邊形為基礎(chǔ)，展現(xiàn)了兩千多年來(lái)，數(shù)學(xué)家們?yōu)榻鉀Q這些問(wèn)題而留下的令人拍案叫絕的思想與成就。尺規(guī)作圖“不可能”解決的問(wèn)題成為歐幾里得、笛卡兒、牛頓和高斯等數(shù)學(xué)巨擘攀登數(shù)學(xué)高峰的階梯，其解決方法也延伸至整個(gè)數(shù)學(xué)領(lǐng)域，眾多重大數(shù)學(xué)發(fā)現(xiàn)皆與它們息息相關(guān)。這段探索之旅將讀者從古典時(shí)期引領(lǐng)到今天，縱觀兩千年來(lái)這四個(gè)無(wú)法解決的問(wèn)題如何引導(dǎo)、啟發(fā)人們數(shù)學(xué)思維的發(fā)展，并發(fā)掘了數(shù)學(xué)史中的種種細(xì)節(jié)。本書適合對(duì)數(shù)學(xué)及數(shù)學(xué)史感興趣的讀者閱讀。

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·6.3萬(wàn)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(hào)和講述方式，另起爐灶，從零開始，用年輕人易于接受的語(yǔ)言闡釋高深的數(shù)學(xué)知識(shí)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(shí)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(guò)來(lái)再提出微積分基礎(chǔ)嚴(yán)格化的問(wèn)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(wàn)字

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寫給青少年的數(shù)學(xué)故事（下）：幾何妙想

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·10.3萬(wàn)字

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武俠數(shù)學(xué)

石器時(shí)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(guó)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(shí)際功能，能帶來(lái)什么樣的樂(lè)趣？古代中國(guó)的數(shù)學(xué)在當(dāng)時(shí)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(wèn)題，都可以由郭靖、黃蓉、楊過(guò)、小龍女等武俠人物來(lái)作答。鑒于計(jì)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(jì)算機(jī)編程解決傳統(tǒng)數(shù)學(xué)問(wèn)題的示例，讓沒(méi)有接觸過(guò)編程的讀者初步了解程序思維的妙用。

·8.8萬(wàn)字

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不焦慮的數(shù)學(xué)：孩子怎么學(xué)，家長(zhǎng)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(duì)計(jì)算能力提升、知識(shí)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(zhǎng)提升家庭輔助教育水平，以及初中學(xué)生實(shí)現(xiàn)自學(xué)與自練，提供了切實(shí)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(zhǎng)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(wàn)字

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Digital Forensics with Kali Linux

Thisbookistargetedatforensicsanddigitalinvestigators,securityanalysts,oranystakeholderinterestedinlearningdigitalforensicsusingKaliLinux.BasicknowledgeofKaliLinuxwillbeanadvantage.

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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(wàn)字

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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(wàn)字

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·7.7萬(wàn)字

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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(wàn)字

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Blockchain for Business 2019

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·6萬(wàn)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(wàn)字

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Improving your C# Skills

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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(wàn)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(wàn)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(wàn)字

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