Friday, December 10, 2021

The Boy Who Dreamed of Infinity by Amy Alznauer

In 1887, Srinivasa Ramanujan was born in a small village in South India, by the banks of the Kaveri River. His mother whispered to him that prior to his birth, "the goddess Namagiri leaned down and whispered in your grandmother's ear that someday she would write the thoughts of God on your tongue." She decided to name him Ramanujan.

For the first three years of his life Ramanujan was silent. To help him, his grandfather would trace numbers in the rice and count aloud in Tamil. This led Ramanujan to being to speak. He would ask questions such as "What is small?" and "What is big?"

At five years of age, Ramanujan attended  a small school held on the porch of a house. He became bored and would often wander away.His mind was filled with questions like,  What else is small? 

He thought of a mango cut into smaller and smaller pieces, until there were infinite pieces. Ramanujan continued to be intrigued by numbers, big and small. 

In school he would scratch numbers furiously on his slate, irritating the school master who wondered what he was doing. Not surprisingly, Ramanujan hated school. After trying new schools every year, his parents finally sent him to Kangayan Primary.

While his schoolmates played goli gundu, Ramanujan spent his time after school on the front pial of his home, working with the numbers he loved so much. Numbers were everywhere for Ramanujan, in the songs his mother sang and in his dreams at night.

When he was ten years old, Ramanujan began attending Kumbakonam Town High School. There a schoolmaster finally recognized Ramanujan's gift with numbers. He had the ability to solve math problems quickly and although shy he entertained his classmates. Ramanujan found a college mathematics textbook and was able to solve all the problems. He began keeping a notebook which he used to write down his mathematical ideas in green pen. 

He loved to ask unusual questions such as "How many sums are inside two hundred?" and "Will an endless list of tiny numbers add up to 1 or infinity?" Unfortunately, Ramanujan failed college and returned home. He was twenty years old and had no job. His mother demanded he get a job and arranged a marriage for him. He eventually obtained work as an account clerk with Port Trust in Madras.

But still Ramanujan continued to work on his math problems. The British, working in Madras were convinced Ramanujan was brilliant and urged him to write a letter to Cambridge University, in England. After many letters and no responses, Ramanujan wrote to G. H. Hardy, a top mathematician at Cambridge who had studied the concept of infinity. Hardy was stunned by Ramanujan's ideas and urged him to come to England. In 1914, after praying in the temple, Ramanujan left behind his amma and appa, and his young wife and sailed to England. He brought with him his notebooks and his ideas which would change the study of mathematics forever.

Discussion

The Boy Who Dreamed of Infinity presents the story of Srinivasa Ramanujan whose life was also the subject of the 2015 movie, The Man Who Knew Infinity

The author, Amy Alznauer has a direct connection to Ramanujan's story because it was her father who discovered Ramanujan's "Lost Notebook." As Alznauer writes in her Author's Note, she was six years old when she travelled to England with her father who was a mathematician. Her father was Professor George Andrews, attending a conference in England in 1976, and who was invited to look at some materials stored at the Trinity College Library belonging to the estate of the late G. N. Watson. Watson had been Mason professor of pure mathematics at the University of Birmingham and had spent ten to fifteen years studying Ramanujan's work. Professor Andrews found a collection of 138 pages containing over six hundred formulas in a box of materials. These pages he called "The Lost Notebook".

Andrews was a recognized authority on the work of Ramanujan and published papers on his work in the journal, Advances in Mathematics.  Alznauer is also a mathematics graduate who teaches calculus and number theory at Northwestern University.

The Boy Who Dreamed of Infinity portrays Ramanujan as a boy obsessed with numbers. He spends all his time writing on his slate and rubbing the numbers off with his elbow so he can produce more formulas and numbers/ For Ramanujan, numbers "leaped and roared." As a child he saw numbers every where. "Numbers were everywhere. In the squares of light pricking his thatched roof. In the gods dancing on the temple tower. In the clouds that formed and re-formed in the sky."

Ramanujan is driven by his desire to understand numbers, and the concept of infinity. "If he could crack the number 1 open and find infinity, what secret would he discover inside other numbers? It felt like he was setting out on a grand chase." It is Ramanujan's personal relationship with numbers, a voyage of discovery that occurred every day, that Alznauer portrays to her young readers. In her Author's Note she writes, "Every morning when Ramanujan woke, numbers rose with the sun and spread to every corner of his mind. From the time he was a little boy, he learned mathematics not from books or teachers but by experimenting with numbers himself. He dusted off their bones and looked for their hidden structures. So I show him discovering ideas like primes and partitions and infinite sums even before he knew what to call them."

The author writes that she "focused on the development of Ramanujan's young mind and his struggle to be understood." In her portrayal, Ramanujan is shown as often being misunderstood as he spent hours with his slate, writing and working with numbers. Because of this he often faced challenges in school and even from the people around him.

For Ramanujan mathematics was an adventure, one that would ultimately lead him from India to England. As he grew older and his questions became more sophisticated, he developed formulas to help him answer those questions. And eventually he had the overwhelming desire to share his ideas about numbers. He wanted to seek out others who were also looking for answers. His experience in England gave him that opportunity.

Adding depth to Alznauer's portrayal of Ramanujan's extraordinary relationship with numbers, is the artwork of illustrator Daniel Miyares. Rendered in ink, the illustrations are colourful, capturing the wonder Ramanujan seems to have had with numbers.

The Boy Who Dreamed of Infinity is recommended for those who are interested in science, and for use in STEM and math classes. Math is portrayed not as something to be feared, but as an exciting challenge. Ramanujan was considered a brilliant mathematician, and Alznauer's picture book offers readers a glimpse into life of possibly one of the greatest mathematicians ever.   

Book Details:

The Boy Who Dreamed of Infinity by Amy Alznauer
Somerville, Massachusetts: Candlewick Press     2020

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