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รามานุจัน อัจฉริยะไม่รู้จบ

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4.15  ·  Rating Details  ·  3,538 Ratings  ·  218 Reviews
ชีวประวัติของนักคณิตศาสตรผูยิงใหญ เปนแรงบันดาลใจใหกับ พอล แอรดิช ผูชายทีหลงรักตัวเลข นักคณิตศาสตรกองโลกทีชาวอินเดียรูจักเหมือนคนตะวันตกรูจักไอนสไตน ...more
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Published by มติชน (first published 1991)
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Siddhartha
Feb 19, 2013 Siddhartha rated it it was amazing  ·  review of another edition
2013 December 22nd was the 125th birth anniversary of Srinivasa Ramanujan. He was a genius whose early death, owing to a multitude of factors not entirely in his control, was a tragedy too profound for tears, as someone said.

That mathematicians are trying to come to terms with his papers and notebooks to this day, is a testimony to his originality. There was a news about his last notebooks on mock modular forms being proven just last month.

This biography by Robert Kanigel is a work of outstandin
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Siby
Ramanujam is considered one of the best mathematicians of all times, in the same league as a Jacobi or Euler.Even though his work is well known within the mathematical community, outside of it, he is virtually an unknown quantity. Robert Kanigel has put in a lot of effort researching material to write such a comprehensive biography of a genius from a century ago.
Ramanujam was born in a poor Tamil brahmin family and had little access to formal education. He had an unnatural flair for mathematics
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Lubinka Dimitrova
One of the best-crafted biographies I've ever read, this book offered not only a deep insight into the story of Ramanujan himself, but also a social biography of colonial India and war time Europe during the early 1900s. Not too heavy on mathematics, it had just enough for the reader to acquire a basic idea of Ramanujan's accomplishments and his contribution to many and various branches of science(note to self: audio books are not well suited for understanding equations). The book is a fertile g ...more
Pallavi Kamat
Sep 15, 2013 Pallavi Kamat rated it it was amazing  ·  review of another edition
This is one of the most fascinating and incredible books I have read in recent times. It is the biography of the famous Indian mathematician Srinivasa Ramanujan.

The book’s blurb states: “The Man Who Knew Infinity is a fascinating biography of the brilliant, self-taught Indian mathematician, Srinivasa Ramanujan. It is also a history of the astonishingly fruitful cross-cultural collaboration between this young, ill-educated mathematical genius and his mentor at Cambridge University, G. H. Hardy –
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Ananthu
Sep 13, 2012 Ananthu rated it it was amazing  ·  review of another edition
A fascinating account on the short but outstanding life of the enigmatic and extraordinary Ramanujan.

From a young, unschooled Indian clerk to an exemplary mathematician, his journey albeit he died at the mere age of 32, is nevertheless awe-inspiring. Even in his final days, he never left his slate and continued to give prominent contributions. Such was his love for Mathematics. He failed in everything else but scored high in Mathematics. But it just wasn’t enough to clutch him a degree. So he w
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Joe
May 30, 2009 Joe rated it really liked it  ·  review of another edition
This book is a biography of Ramanujan, the Indian genius mathematician.

It's difficult to avoid finding Ramanujan fascinating, even if you have no interest in math. He was born poor in India in 1887, and showed an incredible natural talent for math -- including theoretical as well as arithmetical abilities -- but his poor academic talent in other areas prevented him from moving up in India's educational structure. While working a series of low-level bureaucratic jobs, he continually tried to get
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Rohan
Nov 29, 2012 Rohan rated it liked it  ·  review of another edition
Shelves: physics-science
As someone who grew up in Southern part of India, I knew about Ramanujam and some his stories since childhood. The Author has definitely done his research and he is right about almost everything that he mentions in this book. I can clearly see that someone who has never heard about this Mathematician before would enjoy this book far more than I did since I vaguely knew his stories. Nevertheless, if you are interested in Maths, you should probably read this book.

Philipp
Nov 17, 2015 Philipp rated it really liked it  ·  review of another edition
Wonderful biography of Srinivasa Ramanujan, one of the most "romantic" figures of the history of mathematics and science - born relatively poor, no contact with universities, shut out due to an extremely rigid system, no training in mathematics, a pure autodidact who somehow managed to come up with novel and outstanding results but was seen as a bit of a crank, then was invited to the UK by Hardy to finally come in contact with the greats of mathematics, finally got recognition, published a slew ...more
kaelan
Talented biographers tend to be drawn towards one of two kinds of subject. First, there are the people whose lives hold some sort of intrinsic appeal—people like Gandhi, Shakespeare, et. al. But we also have subjects whose biographical-worthiness requires a writer's acumen to uncover (see, for instance, the tale of Henrietta Lacks). Crucially, each kind presents the biographer with a challenge, whether it involves saying something noteworthy or proving that the story's even worth telling in the ...more
Ash
Ramanujan is one of the greatest mathematicians and the most famous mathematician that India has ever produced. I hardly knew anything about him or his contributions to mathematics. I picked this book up with the sole intention of knowing more about this genius. And I am so glad that I did. It was such an inspiring story that I feel every young person must read it.

Ramanujan has been compared with mathematicians like Euler and Jacobi. Ramanujan was a genius, he was -

"... the man whom the English
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Andrew Mcmullen
May 06, 2011 Andrew Mcmullen is currently reading it  ·  review of another edition
The Man Who Knew Infinity by Robert Kanigel explores the uprbining of legendary math genious Ramanujan. The book starts in his earliest upbrinings through childhood. He grew up in the small slums of Madras, where class and and religious segregation defined societys laws. A devout muslim, Ramanujan's wore traditional clothing, was a strict vegetarian, and reguarly attended the temple. His high school was rundown, and deprived in American standards, however for the rural area, where most teenagers ...more
Jayesh Shah
May 16, 2012 Jayesh Shah rated it it was amazing  ·  review of another edition
This book describes the life of Srinivasa Ramanujan. He was an Indian mathematician of early 20th century.
The book is written beautifully. The author gives all the relevant information like local customs, religion, geography, and family dynamics at appropriate places while describing the life of Mr. Ramanujan. The friendship between two great mathematicians, G. H. Hardy and S. Ramanujan is narrated in great details and makes a very important part of this book. Those two men were as different as
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Darshan Nandanwar
First of all kudos to ROBERT KANIGEL to come up with such fascinating facts about one of the indigenous prodigy "Ramanujan" with such ease and effortless storytelling which is rare to be seen without using much mathematical jargons that would make this book certainly *romantic affair* for the readers ! The way all threads are connected with such sumptuous details in chronological events-order ,perhaps it keeps your intrigue alive through-out ! The way Hardy's idiosyncrasies and peculiar thinking ...more
Rushil
Feb 25, 2012 Rushil rated it it was amazing  ·  review of another edition
The book gives you a fascinating insight into Srinivasan Ramanujan's life. Interested in mathematics from early on, Ramanujan overcame all barriers, including a complete lack of formal mathematical training, to become one of the greatest mathematicians of the 20th century. The book explores Ramanujan's mind, which worked very differently from an average 'great' mathematician. Focused on intuitive reasoning rather than rigorous proof, Ramanujan was often disregarded, only to be discovered later B ...more
Dhruv Bhandula
This book is an brilliantly written account of one of few mathematical gems our country has produced. The flow of the book is really good and it keeps you bound throughout its length. I really liked the fact that the writer has tried to keep the unusual but extremely fulfilling friendship between S. Ramanujan and G.H. Hardy. It is in fact a biography of both of these great mathematicians with their interaction acting as the focal point of the whole book.
Ramanujan was really an exceptional person
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Raghu
Jun 07, 2007 Raghu rated it really liked it  ·  review of another edition
This is a biography of the self-taught Indian mathematical genius Srinivasa Ramanujan. Ramanujan was a number theorist par excellence. Many of the results that he defined in his famous 'Ramanujan's notebook' were analyzed many decades after his death and proved by mathematicians interested in the subject.
The book chronicles the extraoridinary fortune of Ramanujan when Prof.Hardy in England responds to a letter of his containing some mathematical results. Those were the days of colonial India and
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Elizabeth
Apr 17, 2012 Elizabeth rated it really liked it  ·  review of another edition
I believe there is a "math world" which I go into when I really get into a proof or equation or whatnot. For me, like many others I imagine, it is a foreign land wherein I don't speak the language fluently nor know the local customs. Ramanujan, however, seemed to be native to it and preferred being there.

This book provides a decent portrait of the individual: he was a normal man who had his share of misfortunes, troubles, and difficulties but who also had joys and epiphanies - oh, and happened t
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Steven
This is the best biography I have ever read. The author's writing was brilliant. He evoked the characters of Ramanujan and Hardy, and the feeling of India and England and their relationship at that time. He provided a sense of World War I, and some of the importance of Ramanujan for India and the rest of the world during his lifetime as well as after his death. The depth he achieved in this biography is an uncommon accomplishment. In addition, it is difficult to provide a sense of the mathematic ...more
kaśyap
Feb 25, 2014 kaśyap rated it really liked it  ·  review of another edition
This is a very well researched and wonderfully written biography of two great mathematecians S.Ramanujan and G.H.Hardy. The author goes into a lot of details about ramanujan's early life and his struggles in south india and after his "discovery" by hardy, the author goes into the aspects of his life in cambridge.The only disappointment in this book is how little of ramanujan's work in mathematics is present in it.
even though i wish there was more math in it,this is still an excellent book.
Nithesh Satish
May 14, 2016 Nithesh Satish rated it really liked it  ·  review of another edition
"One idea that Ramanujan bruited about dealt with the quantity 2^n - 1 . That , a friend remembered him explaining the primordial God and several divinities. When n is zero , there is nothing ; when n is 1 , the expression denotes unity, the Infinite god. When n is 2 , the expression denotes Trinity, when n is 3 , the expression denotes 7 , the Saptha Rishis and so on."

This explains what he meant when he said: "An equation for me has no meaning unless it expresses a thought of god" If only he ha
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Al Maki
Dec 01, 2015 Al Maki rated it really liked it  ·  review of another edition
Shelves: science, history
Ramanujan was born around 1890 near Madras into a poor Brahmin family. By most accounts he had the sort of genius in mathematics that comes along once a century, the mathematical equivalent of a Mozart. The book tells his life story, his struggle to find a way to do mathematics in a time and place that didn't regard him as a likely candidate for mathematical genius, his short career at Cambridge where he didn't fit and his consequent early death. It's a sympathetic account of what life was like ...more
Indira
Apr 18, 2015 Indira rated it it was amazing  ·  review of another edition
Never read a biography where my admiration was divided equally between the protagonist and the author. If Ramanujan came to life, it was because there was a tremendous effort that went into understanding the nuances of culture, religion and spiritual fabric that must be so foreign to Kanigel. To translate this understanding to an audience that didn't have the benefit of his extensive research with such ease, what an author he is! Ramanujan's life course was sketched in such a tangibly heart rend ...more
Vijai
Apr 16, 2013 Vijai rated it it was amazing  ·  review of another edition
Life is a wily merchant and in his shop everything is for sale for the right price. This book convinced me that Mr. Ramanujam paid that price and gave the merchant a healthy tip while at that.

How else would you explain that when you find out that he worked on mathematics in the hospital bathroom when he was hospitalized for Tuberculosis only to be later awarded an FRS for the same? None better than nod your head and say that the two gentlemen; Life and Mr. Ramanujam made a fair deal.

Mr. Kanige
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Vincent B
Nov 05, 2015 Vincent B rated it it was amazing  ·  review of another edition
A really good book which does justice to the genius of Ramanujan. One thing about the book that really struck me is the amount of detail the author went into researching Ramanujan. In this book, you can read customs Ramanujan followed as Tamil Brahmin which were relevant in early 1900s, extremely detailed introduction to his mentor G.H Hardy's life and their is even mention about the secret society which Hardy was part of.

Though the beginning is slow but it catches pace as the book progresses.
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Deborah O
I'm torn between rating this two or three stars, but decided to round up to three.

The difficulty here was figuring out whether the writing or the story was more important, and in the end I went with story. However, here are some problems I had with the book:

1. Flowery descriptions that were in some places completely ridiculous and in some others just wrong

2. Lots of irrelevant detail (I don't care about the author of the book that was read by Ramanujan, or the boat he traveled to England in)

3. A
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Ronald Panico
Jun 24, 2015 Ronald Panico rated it it was amazing  ·  review of another edition
Best story/ biography I have ever Read!

This is a fantastic book, Robert Kanigle is a wonderful writer. I purchased the book with narration by Humphrey Bower-he was spellbinding- could not put it down. He covered G.H. Hardy, atheists, homosexual, God was his personal enemy, Hinduisms and the caste system ,and how Ramanujan wore his caste marking on his forehead and all of the players in Ramanujan's life. You could close your eyes as Bower described Kanigle's descriptions of the surrounding, the p
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Charles
Jun 13, 2015 Charles rated it it was amazing  ·  review of another edition
An accurate account of an amazing man

The life of Srinivasa Ramanujan Iyengar is truly the most amazing in all of science. A transcendent mathematical genius, he was both amazingly lucky and the victim of incredible misfortune. Quite possibly the greatest mathematical talent the world has ever known, his discoveries still astound and baffle those who read them.
Born to a poor, upper caste Brahmin family in the area near Madras in southern India, he was self-taught in mathematics and failed all oth
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Max Evans
I had heard about Ramanujan before, but not enough to know his name, just that his case was used in arguments to show that the education system is a failure and that genius can come from anywhere. I agree that genius can come from anywhere, but this book puts paid to the fact that it is a failure of the education system. At one point the question is asked, are there other Ramanujan's out there. The book points out that Ramanujan's brilliance is a once in a life time, or century. That with all of ...more
Vish Ganapathy
Mar 24, 2014 Vish Ganapathy rated it it was amazing  ·  review of another edition
Robert Kanigel's excellent juxtaposition of Srinavasa Ramanujan's superhuman mathematical brilliance with his very human shortcomings only serves to accentuate his genius! To think a self-taught mathematician will leave behind such superb math that confounds us till today; and we continue to discover new applications for them; including mock modular functions in understanding the entropy of black holes. Absolutely stunning!
Lisa
Not very well-written (way too long and repetitive, some dated presentations of people from India-- especially for when it was published, very sentimental), but such a fascinating slice of history that I'd say it's worth reading. Now I need to read Hardy's A Mathematician's Apology.
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Robert Kanigel was born in Brooklyn, but for most of his adult life has lived in Baltimore, where he lives today. He has written seven books.

"The Man Who Knew Infinity," his second book, was named a National Book Critics Circle finalist, a Los Angeles Times Book Prize finalist, and a New York Public Library "Book to Remember." It has been translated into Italian, German, Greek, Chinese, Thai, and
...more
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“Sometimes in studying Ramanujan's work, [George Andrews] said at another time, "I have wondered how much Ramanujan could have done if he had had MACSYMA or SCRATCHPAD or some other symbolic algebra package.” 5 likes
“They must be true because, if they were not true, no one would have the imagination to invent them.” 3 likes
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