Biography of Srinivasa Ramanujan
Solve this
2 4
1 3
4 2
1 3
3 2 4 1
1 4 2 3
4 3 1 2
2 1 3 4
In mathematics class teacher
said the student to divide
Divide three bananas to three boys, how
much each will get?
• Roar- to laugh loudly
• A boy asked “if no banana
is distributed among no
one will everyone still get
one banana?”
• Teacher said If zero banana
is divided among zero each
will get an infinity number
of bananas
• Thumped-to beat forcefully
• The teacher later
complimented the boy
• It takes several centuries to
answer
•Some mathematician claimed
• Absurd-stupid and unreasonable silly in a humorous way
Indian mathematician Bhaskara who proved that it is
infinity
The boy who asked intriguing question was Srinivasa
Ramanujan
• Intriguing- very interesting
because of being unusual or
mysterious
• His father was a petty clerk
in a cloth shop
•Ramanujan early
childhood- he was a
prodigy
Prodigy- a child who shows a great ability at a young
age
Senior student used to go to his dingy house to get their
difficulty in mathematics solved
Dingy-a dark and dirty place
At the age of 13 he got Loney’s
trigonometry from college library
He came forth with
theorems and formulae
– not given in the
book – they had been
discovered much
earlier by great
mathematicians
Synopsis of Elementary Results in Pure Applied Mathematics by
George Shoobridge Carr.
• Unkempt- not neat or cared for
•Uncouth-behaving in an unpleasant way
This book triggered
the mathematical
genius in him
• Do problems on
loose sheets of
paper, slate and
jot the result in
note books later
became
Ramanujan’s
Frayed
Notebooks.
Although he secured first class in mathematics
and got Subramanyan Scholarship
He failed twice in his first year arts examination in college
He
neglected
other
subject
this
disappoint
ed his
father
His father
thought
Ramanujan
had gone
mad when he
found the boy
always
scribbling
He began
to look for
a job to
buy papers
for
calculation
s
He needed 2000 sheets of
papers for calculations
every month
He searched for clerical job by
showing his Frayed note books but no
one can understand
•Atlast the Director of Madras Port Trust Francis
Spring impressed by Ramanujan’s note book
• Francis Spring gave a clerical job on a monthly salary of Rs 25
On may 1913 the University of Madras granted him a fellowship
of Rs 75 a month
Ramanujan had sent a letter to great mathematician G.H.Hardy of
Cambridge University
In which he set 120
theorems and
formulae
Among them was what is known as the Reimann series
•Hardy and J.E.Littlewood had discovered a rare mathematical
genius(Ramanujan)
On march 17, 1913 he saile
for Britain
At Cambridge the cold was hard to bear and being a
vegetarian however he continued his research in
mathematics
Hardy found an unsystematic
mathematician in Ramanujnan
He played with numbers
as a child would play
with a toy
• Distinguished-used to describe a person, respected, admired
for excellence
Ramaniujan was elected Fellow of Royal Society on febuary 28,
1918
Youngest Indian to
receive this
distinguished fellowship
• Emaciated-very thin and weak usually because of illness
In October 1918 he become first Indian
to be elected Fellow of Trinity college,
Cambridge
In algebra his continued fraction is considered to be equal
to great mathematicians like Leonhard Euler and Jacobi
•Leonhard
•Jacobi
While continued his research work he
was affected by Tuberculosis
• Agonising- causing extreme physical or mental pain
He continued to
play with numbers
even on his death
bed
Besidesbeingamathematician
Ramanujanwasanastrologerofrepute
andagoodspeaker
He used to give lectures on
subjects like “God, Zero and
Infinity”

From zero to infinity