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Thisisapletelyrevisededition,withmorethafiftypagesofnewmaterialscatteredthroughout.Ikeepingwiththeconventionalmeaningofchaptersandsections,Ihavereorgaruzedthebookintotwenty-ninesectionsisevechapters.ThemaiadditionsareSectio200theLiederivativeandinteriormultiplication,twointrinsicoperationsoamanifoldtooimportanttoleaveout,newcriteriaiSectio21fortheboundaryorientation,andanewappendixoquaternionsandthesymplecticgroup.Apartfromcorrectingerrorsandmisprints,Ihavethoughtthrougheveryproofagain,clarifiedmanypassages,andaddednewexamples,exercises,hints,andsolutions.Itheprocess,everysectiohasbeerewritten,sometimesquitedrastically.Therevisionsaresoextensivethatitisnotpossibletoenumeratethemallhere.Eachchapternoweswithaintroductoryessaygivingaoverviewofwhatistoe.Toprovideatimelineforthedevelopmentofideas,Ihaveindicatedwheneverpossi-blethehistoricalorigioftheconcepts,andhaveaugmentedthebibliographywithhistoricalreferences.
本书按照高中数学竞赛大纲要求，详细讲解了初等数论的基本概念、基本知识和基本的解题方法、解题技能，旨在提高学生的解决问题和分析问题的能力。
