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Ihr Warenkorb ist leerOrkus Morkus
Bewertet in Deutschland am 3. Februar 2023
The bad thing is that it could have been a good book. But it would have had to be written by someone who keeps politics out of the book. Even if I agree with positions, it is simply annoying, Ms Cheng has nothing to contribute to this area except virtue signalling. In the area of category theory that is addressed, this book is only of limited use. There are better (and not talkative) introductions, which are also available here on Amazon. A pity for the money.
Mark Williams
Bewertet in Australien am 19. März 2023
I am a maths enthusiast who enjoys both rigour and prosaical styles of maths books for fun and extended learning. I Persisted in trying to get to actual meaning and expose of category theory in this book but it took too long (even with me scanning ahead) with far too many metaphors and similes but no definitions to build upon logically. Read 25% and gave up. Content most probably brilliant but failed my enthusiasm standards and frustration limits. NB Nice price for a hardcover book - rare!
christopher kowalczyk
Bewertet in Kanada am 17. Februar 2023
This I think is probably my first review on Amazon and I've purchased a lot of books over the years. I never really was good at math, but since I'm studying web development and design I thought I'd take a gander at Cheng's book just to get at the notion of abstraction. I have to say not even half way through this work, I'm thoroughly enjoying this, even taking a stab at some of the exercises, like the lattice of factors.Cheng's love for abstract mathematics really shines through the text and she elucidates the concepts so well, it makes me want to go further with these so far removed worlds of abstract thought. I just hope, as the author with this gift of explanation would write a book in the same vein as this one, for calculus or abstract algebra.
Luca M
Bewertet in Italien am 25. April 2023
A gentle leading by hand a child towards Category Theory, with plenty of practical examples (not only from math).I'm enjoying reading it.This could be the right way to understand the "Mathematics of mathematics" (that is the scope of Category Theory)Strongly recommended.
Gamer1990
Bewertet in Deutschland am 30. November 2022
There are no examples given for the most abstract concepts in the latter chapters, where they would be most important. Author also couldn't keep her politics out of the book.
P. J. Krause
Bewertet in Großbritannien am 28. Oktober 2022
Although one of Eugenia Cheng's life ambitions is to make Maths accessible to non-mathematicians, this is also a terrific read for working mathematicians. It is more wordy than a typical text book, but the insights are profound and even from the start shows some quite pretty mathematics. Category Theory is a little bit niche and somewhat controversial amongst practicing mathematicians - perhaps because it works at a higher level of abstraction, perhaps because many presentations on it seem to revel in the obscure. Tom Leinster's "Basic Category Theory" goes a way to address this but reading Eugenia's lovely book first can help tune into the right mindset.For the non-mathematician, the examples are indeed topical. Eugenia emphasises that you don't need to agree with her personal views but using topical examples demonstrates the value of rigorous and systematic thinking (this is mathematics) in clarifying _differing_ perspectives. It makes dialogue possible. As the world systems get more and more complex we need to go further with our understanding of reasoning system and behavioural systems in order to gain understanding of conflicting views. The book gently carries the reader through to some very advanced concepts so needs concentration. But the outcome will be a level of enlightenment.My personal view is that this is one of the most important books to have come out this year.
Volodymyr Pavlyshyn
Bewertet in Deutschland am 15. Oktober 2022
I enjoy book but from pc . It is unreal to read from device
Seeker11
Bewertet in den USA am13. Oktober 2022
Eugenia Cheng (may her tribe increase!)Awoke one night from a deep dream of peace,And saw, within the moonlight in her room,An angel writing in a book of gold.Exceeding peace had made Eugenia bold,And to the presence in the room she said,"What writest thou?"—The vision raised its head,Answered, "The names of those who love Mathematics.""And is mine one?" said Eugenia. "Nay, not so,"Replied the angel. Eugenia spoke more low,But cheerly still; and said, "I pray thee, then,Write me as one that loves her fellow men."The angel wrote, and vanished. The next nightIt came again with a great wakening light,And showed the names whom Mathematics had blest,And lo! Eugenia’s name led all the rest.Leigh Hunt would probably forgive the mangling of his magnificent poem for he would agree with the sentiments (he would certainly be fascinated by Category Theory were he alive today). To write a book like this takes a) Absolute mastery of the subject, b) Love of one's fellow man to be willing to put so much effort into sharing the joy of the subject and c) A genius for conveying very difficult ideas and making them comprehensible. All of us readers benefit from Eugenia Cheng's experience in teaching children and artists - the patience with which she develops the ideas in this book is admirable (and necessary) and the overall effort is deserving of the highest praise.
Produktempfehlungen
24.87€
11 .99 € 11.99€