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This textbook is designed for students. Rather than the typical definition-theorem-proof-repeat style, this text includes much more commentary, motivation and explanation. The proofs are not terse, and aim for understanding over economy. Furthermore, dozens of proofs are preceded by "scratch work" or a proof sketch to give students a big-picture view and an explanation of how they would come up with it on their own. Examples often drive the narrative and challenge the intuition of the reader. The text also aims to make the ideas visible, and contains over 200 illustrations. The writing is relaxed and includes interesting historical notes, periodic attempts at humor, and occasional diversions into other interesting areas of mathematics. The text covers the real numbers, cardinality, sequences, series, the topology of the reals, continuity, differentiation, integration, and sequences and series of functions. Each chapter ends with exercises, and nearly all include some open questions. The first appendix contains a construction the reals, and the second is a collection of additional peculiar and pathological examples from analysis. The author believes most textbooks are extremely overpriced and endeavors to help change this.Hints and solutions to select exercises can be found at LongFormMath.com. This is the 2 + epsilon edition of this book. The second edition was published in July 2019. In January 2024, an epsilon of changes were made and the manuscript was updated, without officially creating a new edition. Review: A superb tour de force of Real Analysis with excellent proofs - I have a number of RA texts and I have to say this one really impressed. Obviously the thoroughness is there (it's a big book for such a low price) but what impressed most is the sketches of proofs before the proofs and the explanations within. The author really goes to great depths to fully explain everything which makes this an excellent text for self learners. Highly recommend, along with the author's other text on Proof. Hints to exercises are on his website, but I would have liked a more substantial bank of solutions. Review: A perfect introduction - If you are buying a first book in Real Analysis then this is the one, especially if you are quite new to proof in general. This book is much less terse than your typical Analysis book. You can use this book to build mathematical maturity and then move on to the more concise books. The author has done an amazing job here and deserves a lot of credit.
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| Customer Reviews | 4.8 out of 5 stars 841 Reviews |
J**S
A superb tour de force of Real Analysis with excellent proofs
I have a number of RA texts and I have to say this one really impressed. Obviously the thoroughness is there (it's a big book for such a low price) but what impressed most is the sketches of proofs before the proofs and the explanations within. The author really goes to great depths to fully explain everything which makes this an excellent text for self learners. Highly recommend, along with the author's other text on Proof. Hints to exercises are on his website, but I would have liked a more substantial bank of solutions.
T**R
A perfect introduction
If you are buying a first book in Real Analysis then this is the one, especially if you are quite new to proof in general. This book is much less terse than your typical Analysis book. You can use this book to build mathematical maturity and then move on to the more concise books. The author has done an amazing job here and deserves a lot of credit.
M**M
A great effort
Nicely written account and very affordable
D**.
Title your review
Very well-written book and I enjoy the constant humour littered in.
K**X
As advertised
All OK
S**Z
101 real analysis in a sympathetic style
Start with this one
A**R
No enough examples.
The book lacks examples; it's just a collection of theorems and proofs. I don't recommend starting real analysis with this book.
T**S
Very happy with this book.
Happy with this book as it contains lots of diagrams and also written examples. Great to keep for reference as well.
R**.
Teaches easily, most effectively.
It costs a little higher vis a vis Indian market ,but it is worth every penny spent , because it teaches you , in a cheerful mood. Author not only presents the contents within a comprehensive single thread , he also breaks ur boredom , if any, with his witty remarks and humour ! Great book, strongly recommended. It is actually an introductory real analysis book, but deserves appreciation. Page and printing worth appreciation as well.
A**.
Sehr sehr gutes Buch für Erstsemester Studierende
Ich studiere Physik und unsere Analysis Vorlesung im ersten Semester war zusammen mit den Mathematikern. Davor kam ich nie in Berührung mit hoher und beweislastiger Mathematik. Meine in einem vorherigen naturwissenschaftlichen Studium erworbenen mathematischen Fähigkeiten konnten mich nur sehr wenig auf die "richtige" Mathematik vorbereiten. Die Analysis Vorlesung war demnach einer meiner schwierigsten und ich hatte schwer mit ihr zu kämpfen. Die empfohlenen Lehrbücher und Skripte des Dozenten haben mich nur weiter verwirrt, waren direkt auf viel zu hohem Niveau und wichtige Sachverhalte als "trivial" angesehen und kaum erklärt. "Real Analysis: A Long-Form Mathematics Textbook" deckt leider nicht den kompletten Stoff der Analysis 1 Vorlesung ab. Inhalte wie die nicht behandelt werden sind u.a: die komplexen Zahlen (macht auch Sinn, das Buch heißt "Real" Analysis), Exponentialfunktionen, Trigonometrische und hyperbolische Funktionen sowie Differentialgleichungen. Das soll aber kein Problem sein, denn die wichtigsten Grundlagen der Analysis 1 Vorlesung (Stetigkeit, Integration und Ableitung) werden tiefgründig erklärt. Ich wünschte ich hätte bereits zu Semesterbeginn von diesem tollen Lehrbuch erfahren. Ich habe es hauptsächlich verwendet um auf die Klausur zu lernen. Das Lehrbuch von Jay Cummings war daher wie ein Segen. Es ist sehr leicht geschrieben und man muss die Sätze nicht 10 mal lesen bis man etwas verstanden hat. Vor allem für komplette Anfänger ist dieses Lehrbuch ein Muss. Man merkt sofort, dass der Autor sich sehr viel Mühe gegeben hat und insbesondere, dass er Spaß beim Verfassen des Textes hatte. Ich musste immer wieder mal lachen über die reichlichen Witze, Memes und Anmerkungen im Buch. Das motiviert einen natürlich sehr und die Sachen bleiben eher hängen. Etwas Humor sollte immer dabei sein, viel zu viele Akademiker nehmen es viel zu ernst und leben in einer studentenfernen Welt. Man studiert ja immerhin Mathematik / Physik / ..., weil es einem Spaß macht. Einige mögen vielleicht vor dem Kauf zurückschrecken, da es nur in englischer Fassung erhältlich ist, aber es ist sehr leichtes Englisch. Das "Schul-Englisch" reicht vollkommen aus und man gewöhnt sich sehr schnell daran. Insbesondere war ich schon immer der Meinung, dass es nur von Vorteil sein kann, sich schon recht früh mit englischer Fachliteratur auseinanderzusetzen.
R**S
Great Book
Very well written.
V**O
Testo eccezionale
Questo testo è il link ideale fra i corsi di Calculus e Real Analysis così come vengono chiamati in UK/US. In Italia siamo meno abituati a questa distinzione, perchè almeno i nostri vecchi corsi di Analisi assumevano l'una e l'altra veste. In ogni caso, sia nello studio da autodidatta che di preparazione preliminare a corsi più avanzati, questo ottimo libro accompagna il lettore nel viaggio alla scoperta delle strategie di dimostrazione e del linguaggio tipico dell'Analisi Matematica. L'inglese utilizzato è davvero di facile comprensione e l'esposizione è informale quando opportuno, al tempo stesso è rigorosa nella presentazione delle definizioni, teoremi e dimostrazioni finali. Per alcune dimostrazioni si adotta una strategia graduale, prima una bozza informale e alla fine la "vera" dimostrazione, inutile dire come questo abbia un gran valore pedagogico, cosa di cui i testi più comuni devono fare necessariamente a meno. Il contenuto tocca gli argomenti tipici di un primo corso di Analisi: numeri reali, successioni e serie numeriche, limiti, continuità, differenziazione, integrazione, successioni e serie di funzioni. Consiglio di utilizzarlo come accompagnamento ai testi tradizionali sugli stessi argomenti.
D**N
Perfecto para aprender.
Maravilloso libro. Rompe con la tradición de libros de matemática ininteligibles que solo alejan a potenciales nuevos matemáticos. Se necesitan más autores como el Doctor Cummings.
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