The boy who dreamed of infinity A tale of the genius Ramanujan

Amy Alznauer

Book - 2020

"If Ramanujan could crack the number 1 open and find infinity, what secrets would he discover inside other numbers?"--Back cover.

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jBIOGRAPHY/Ramanujan Aiyangar, Srinivasa
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Subjects
Genres
Biographies
Picture books
Published
Somervile, Massachusetts : Candlewick Press 2020.
Language
English
Main Author
Amy Alznauer (author)
Other Authors
Daniel Miyares (illustrator)
Edition
First edition
Physical Description
1 volume (unpaged) : color illustrations ; 29 cm
Bibliography
Includes bibliographical references.
ISBN
9780763690489
Contents unavailable.
Review by Booklist Review

Born in South India, Ramanujan did not speak for three years, but when his grandfather counted out loud to him, the child found his voice and began asking questions. While arithmetic in school seemed rigid, rote, and unappealing, his mind soared with creative dreams about numbers. At 15, Ramanujan worked his way through a college math book and then began to fill notebooks with his ideas and theories. Later, he set off for Cambridge University to collaborate with a noted mathematician. The story ends with the comment that, 100 years later, people are still searching Ramanujan's notebooks ""in wonderment."" In an informative author's note, Alznauer recalls that as a child, she and her family visited Cambridge, and her father discovered Ramanujan's lost notebook. She also comments on India's ancient mathematical tradition, Ramanujan as a number theorist, and the profound originality of his ideas. The perceptive text offers anecdotes that enable readers to see many sides of Ramanujan, portraying him as a genius who, driven to pursue his passion, produced work of lasting value. Miyares uses colored inks skillfully, creating vivid, imaginative scenes that help viewers envision Ramanujan's story and its setting. An illuminating picture-book biography of a fascinating, singular figure in the history of mathematics.--Carolyn Phelan Copyright 2020 Booklist

From Booklist, Copyright (c) American Library Association. Used with permission.
Review by Publisher's Weekly Review

In his small Indian village, the child Ramanujan asks: "What is small?... What is big?" He contemplates this problem in creative ways: "A mango is like an egg. It is just one thing. But if I chop it in two, then chop the half in two, and keep on chopping, I get more and more bits... to an infinity I could never ever reach. Yet when I put them back together, I still have just one mango." Alznauer deftly uses Ramanujan's ponderings to illustrate complex mathematical concepts, including prime numbers, partitions, and infinite sums. Despite his brilliance (or perhaps because of it), Ramanujan struggles: " 'I am like the first man in the world with no one to hear me speak,' he thought." Eventually, his genius is recognized--and his work still sparks wonder among mathematicians today. Lush watercolors by Miyares capture the lyrical details of Ramanujan's world. Ages 5--9. (Apr.)

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Review by School Library Journal Review

Gr 4--6--This admiring picture book biography of Indian-born mathematical genius Srinivasa Ramanujan (1887--1920) opens with his early childhood. He liked to ponder complex questions about numbers, which his teachers were unequipped to answer. As he grew older, Ramanujan worked feverishly to find solutions, each leading to more questions and answers. His ideas evolved over time, and he developed unique formulas to solve them. In his early 20s, at the urging of colleagues and friends, Ramanujan wrote to mathematicians at Cambridge University about his theories. One last letter earned an invitation, and he sailed to Britain in 1914. He died at age 32, but his mathematical contributions live on. This engaging volume portrays the development of a brilliant, inquisitive mind and includes text inspired by the subject's own words. Students will learn terms in Tamil (definitions provided through context). While some concepts may confound the mathematically challenged, Ramanujan's resilience should motivate students to hold onto their passions. Oddly, his birth and death dates aren't given and are absent in the informative author's note. The lively, delicate ink drawings capture the sights, colors, and culture of India and, on some pages, depict numbers playfully cavorting, just as they tumbled in Ramanujan's brain. VERDICT Best for talented math students and others who enjoy exploring favorite subjects independently. Recommended for schools and large public collections; useful where STEM biographies are needed.--Carol Goldman, formerly at Queens Library, NY

(c) Copyright Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
Review by Horn Book Review

This eloquently written picture-book biography gives voice to the brilliantand self-taughtmathematician Srinivasa Iyengar Ramanujan. Born in South India in the late nineteenth century, Ramanujan was a late talker, and when he finally did speak, his unusual questions set him apart. What is small?...And what is big? As the boy thought long and hard about infinity, numbers leaped and roared. However, in school, numbers were different, stiff and straight, obeying the rules. After he flunked out of college (he ignored his non-math courses), his mother arranged a marriage for him, and he eventually found work as a clerk in Madras. Encouraged by local mathematicians and his British supervisors, he wrote letters to the top mathematicians at Cambridge University. In 1914, Ramanujan traveled to England, eager to share his mathematical insightsand to no longer feel isolated, like the first man in the world with no one to hear me speak. Alznauer employs a handful of Tamil words to good effect, and articulately conveys the concept of infinity. She also revisits, quite poignantly, Ramanujans spiritual anchorhis grandmothers dream of a Hindu goddess who promised to write the thoughts of God on [his] tongue. Miyaress ink-wash illustrations play with light and dark in realistic scenes and whimsical number-filled spreads. An authors note includes further biographical details and explains that many of the thoughts and quotes are inspired by Ramanujans actual words; a bibliography is also appended. Tanya D. Auger March/April 2020 p.96(c) Copyright 2020. The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.

(c) Copyright The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
Review by Kirkus Book Review

Srinivasa Ramanujan was a self-taught genius whose original insights into number theory still inspire mathematicians today. Ramanujan was born in 1887 into a Tamil family in South India. Before his birth, his grandmother dreamed that the goddess Namagiri "would write the thoughts of God on his tongue." As a young boy growing up in temple towns, Ramanujan hated traditional classrooms and often ran away from school, but he was captivated by numbers, big and small. Gorgeous watercolor spreads show how "numbers came whispering in dreams" and "would rush across the pages in circles and packs." He pondered complex ideas such as infinite series, number partitions, and primes; he entered high school at 10 and solved college-level problems at 15, but he couldn't focus on anything except math. He failed college and lived in poverty and isolation, still pursuing his research with mystical zeal, "trying to learn the thoughts of God." Eventually, his persistent attempts to find a kindred spirit paid off. Following Namagiri's promptings, he sailed away to share his work with the best mathematicians in England. Alznauer is a mathematician herself, and her loving tribute evokes Ramanujan's early years with rich and authentic detail, which Miyares' luminous compositions bring vividly to the page. All characters are Indian and have brown skin and hair. A fascinating story beautifully told. (author's note, bibliography) (Picture book/biography. 6-10) Copyright (c) Kirkus Reviews, used with permission.

Copyright (c) Kirkus Reviews, used with permission.