KENDRIYA VIDYALAYA
SRINIVASA IYANGAR RAMANUJAN’S
LIFE AND HIS GENIUS
1887-1920
2
 Born 22 December 1887
Erode, Madras Presidency
 Died 26 April 1920 (aged 32)
Chetput,Madras Presidency
o Father : Kuppuswamy Srinivasa Iyengar,
a clerical assistant (Gumastha)
to a cloth merchant
o Mother: Komalatammal, was a housewife
Srinivasa Ramanujan Said:
6
Srinivasa Ramanujan is known as an
all-time great Indian Mathematician
Born on 22 nd
December
1887,Erode,
Tamilnadu, India
7
Once his teacher said that when zero is
divided by any number, the result is
zero, Ramanujan immediately asked
his teacher, whether zero divided by
zero gives zero; This shows early signs
of his genius!
A thought of 7 years Old
Ramanujan
8
SCHOOL EDUCATION
Passed primary examination and
Stood first in the district at
Town high school-Kumbakonam
(1898).
Mastered advanced trigonometry
written by S. L. Loney at the age of
13 years.
9
Adulthood
 He was a self-taught Mathematician.
 He was really good at Maths so when he
took his exam, he passed in Maths, but
failed in other subjects because of his
disinterest. So , he couldn’t enter the
university of Madras for further studies.
 He was married with a nine years old girl
named Janaki Ammal, when he was 22 but
he did not live with his wife till she reached
the age of 12.
 Since he showed extraordinary talent by
himself, people around him helped to take
his achievements known to the other
Internationally renowned mathematicians .
10
 He was invited to England to improve
his works by G.H.Hardy and J.E
Littlewood, who were great
mathematicians.
 Hardy and Ramanujan had two
opposite personalities. As Hardy was
an atheist and believes mathematical
proof and analysis, Ramanujan was a
deeply religious guy and he believed in
his trustworthy intuition .
 He was the first elected
Mathematician from India to the
London Mathematical society and he
became a Fellow of the Royal society.
11
Recognition of his
Genius
Initially, G. H. Hardy thought that the
works of Ramanujan were fraud because
most of them were impossible to believe.
But eventually ,they were convinced and
interested in his talent.
12
13
SRINIVASA RAMANUJAN
AND HIS MAGIC
SQUARE
14
RAMANUJAN’S MAGIC SQUARE
This square looks like
any other normal
magic square. But
this is formed by
great mathematician
of our country –
Srinivasa Ramanujan.
What is so great in it?
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
15
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
Sum of numbers
of any row is 139.
What is so great in
it.?
RAMANUJAN’S MAGIC SQUARE
16
RAMANUJAN’S MAGIC SQUARE
Sum of numbers of
any column is also 139.
Oh, this will be
there in any magic
square.
What is so great in it..?
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
17
RAMANUJAN’S MAGIC SQUARE
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
Sum of numbers of
any diagonal is also
139.
Oh, this also will be
there in any magic
square.
What is so great in it…?
18
RAMANUJAN’S MAGIC SQUARE
Sum of
corner
numbers is
also 139.
Interesting?
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
19
RAMANUJAN’S MAGIC SQUARE
Look at
these
possibilities.
Sum of
identical
coloured
boxes is also
139.
Interesting..?
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
20
RAMANUJAN’S MAGIC SQUARE
Look at
these
possibilities.
Sum of
identical
coloured
boxes is also
139.
Interesting..?
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
21
RAMANUJAN’S MAGIC SQUARE
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
Look at these
central
squares.
Interesting…?
22
RAMANUJAN’S MAGIC SQUARE
Can you try
these
combinations?
Interesting…..?
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
23
RAMANUJAN’S MAGIC SQUARE
Try these
combinations
also?
Interesting.…..?
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
24
RAMANUJAN’S MAGIC SQUARE
It is 22nd Dec 1887.
Yes. It is 22.12.1887
BE A PROUD
INDIAN
22 12 18 87
88 17 9 25
10 24 89 16
19 86 23 11
25
3 9 1 8 1 2.4
1 2 16 1 2 1 15
1 2 1 3.5 1 2 1 3 25
1 2 1 3 1 24 1 2 1 3 1 4.6
1 2 1 3 1 4 1 35 ..........
1 2 1 3 1 4 1 5 1 .....
     
    
     
       
    
     
Ramanujan himself supplied the solution to
the problem
26
Deplorable Condition of
Ramanujan
“When food is the problem,
how can I find money for
paper? I may require four
reams of paper every
month.”
27
Srinivasa Ramanujan at
Trinity college,Cambridge
28
• Ramanujan and Hardy
arrived at Ramanujan’s
residence in a cab number
1729.
Hardy commented that the
number 1729 seemed to be
unintresting.
Ramanujan said that it is a
very intresting
mathematical number.
29
The smallest natural number can be
represented in two different ways as a sum
of two cubes:
1729=13 +123
=93 +103
It is also incidentally the product of three
prime numbers
30
CONTRIBUTION TO THE THEOREY OF
PARTITIONS
• A partition of a
natural number ‘n’
is a sequence of
non-decreasing
positive integers
whose sum is ‘n’.
N No. of PARTITIONS
1 1
2 2
3 3
4 5
5 7
6 11
31
The highest highly composite number listed
by Ramanujan is 6746328388800
Having 10080 factors
Example:
For N=4,PARTITIONS are
4 = 4
=1+3
=2+2
=1+1+2
=1+1+1+1
P(4)=5,Whether P is a partition function
32
The last three Books of Ramanujan
33
Calculations of Ramanujan in his own
handwriting
34
Mock Theta Functions
35
TOUGH LIFE IN ENGLAND
 Pure vegetarian meals was not
available.
 Too busy with calculations and
very often neglected food and spent
till late night.
 The cold and damp climate disturbed
his health.
 He was attacked by Tuberculosis.
 He returned to India.
36
We Miss a Great Mathmatician
• Ramanujan sailed to Indian on
27 February 1919 and arrived
on 13 march
However his health was very
poor.
He passed away on 26th April
1920 at Kumbakonam(Tamil
nadu)
37
Recognition by Govt.of India
• The Prime Minister of India,
Dr. Manmohan Singh has
declared the year 2012 as the
“National Mathematical
Year” and the date December
22, being the birthday of
Srinivasa Ramanujan has been
declared as the
• National Mathematics day”
to be celebrated every year
38
39

Srinivasa ramanujam

  • 1.
  • 2.
    SRINIVASA IYANGAR RAMANUJAN’S LIFEAND HIS GENIUS 1887-1920 2
  • 3.
     Born 22December 1887 Erode, Madras Presidency  Died 26 April 1920 (aged 32) Chetput,Madras Presidency
  • 4.
    o Father :Kuppuswamy Srinivasa Iyengar, a clerical assistant (Gumastha) to a cloth merchant o Mother: Komalatammal, was a housewife
  • 6.
  • 7.
    Srinivasa Ramanujan isknown as an all-time great Indian Mathematician Born on 22 nd December 1887,Erode, Tamilnadu, India 7
  • 8.
    Once his teachersaid that when zero is divided by any number, the result is zero, Ramanujan immediately asked his teacher, whether zero divided by zero gives zero; This shows early signs of his genius! A thought of 7 years Old Ramanujan 8
  • 9.
    SCHOOL EDUCATION Passed primaryexamination and Stood first in the district at Town high school-Kumbakonam (1898). Mastered advanced trigonometry written by S. L. Loney at the age of 13 years. 9
  • 10.
    Adulthood  He wasa self-taught Mathematician.  He was really good at Maths so when he took his exam, he passed in Maths, but failed in other subjects because of his disinterest. So , he couldn’t enter the university of Madras for further studies.  He was married with a nine years old girl named Janaki Ammal, when he was 22 but he did not live with his wife till she reached the age of 12.  Since he showed extraordinary talent by himself, people around him helped to take his achievements known to the other Internationally renowned mathematicians . 10
  • 11.
     He wasinvited to England to improve his works by G.H.Hardy and J.E Littlewood, who were great mathematicians.  Hardy and Ramanujan had two opposite personalities. As Hardy was an atheist and believes mathematical proof and analysis, Ramanujan was a deeply religious guy and he believed in his trustworthy intuition .  He was the first elected Mathematician from India to the London Mathematical society and he became a Fellow of the Royal society. 11
  • 12.
    Recognition of his Genius Initially,G. H. Hardy thought that the works of Ramanujan were fraud because most of them were impossible to believe. But eventually ,they were convinced and interested in his talent. 12
  • 13.
  • 14.
  • 15.
    RAMANUJAN’S MAGIC SQUARE Thissquare looks like any other normal magic square. But this is formed by great mathematician of our country – Srinivasa Ramanujan. What is so great in it? 22 12 18 87 88 17 9 25 10 24 89 16 19 86 23 11 15
  • 16.
    22 12 1887 88 17 9 25 10 24 89 16 19 86 23 11 Sum of numbers of any row is 139. What is so great in it.? RAMANUJAN’S MAGIC SQUARE 16
  • 17.
    RAMANUJAN’S MAGIC SQUARE Sumof numbers of any column is also 139. Oh, this will be there in any magic square. What is so great in it..? 22 12 18 87 88 17 9 25 10 24 89 16 19 86 23 11 17
  • 18.
    RAMANUJAN’S MAGIC SQUARE 2212 18 87 88 17 9 25 10 24 89 16 19 86 23 11 Sum of numbers of any diagonal is also 139. Oh, this also will be there in any magic square. What is so great in it…? 18
  • 19.
    RAMANUJAN’S MAGIC SQUARE Sumof corner numbers is also 139. Interesting? 22 12 18 87 88 17 9 25 10 24 89 16 19 86 23 11 19
  • 20.
    RAMANUJAN’S MAGIC SQUARE Lookat these possibilities. Sum of identical coloured boxes is also 139. Interesting..? 22 12 18 87 88 17 9 25 10 24 89 16 19 86 23 11 20
  • 21.
    RAMANUJAN’S MAGIC SQUARE Lookat these possibilities. Sum of identical coloured boxes is also 139. Interesting..? 22 12 18 87 88 17 9 25 10 24 89 16 19 86 23 11 21
  • 22.
    RAMANUJAN’S MAGIC SQUARE 2212 18 87 88 17 9 25 10 24 89 16 19 86 23 11 Look at these central squares. Interesting…? 22
  • 23.
    RAMANUJAN’S MAGIC SQUARE Canyou try these combinations? Interesting…..? 22 12 18 87 88 17 9 25 10 24 89 16 19 86 23 11 23
  • 24.
    RAMANUJAN’S MAGIC SQUARE Trythese combinations also? Interesting.…..? 22 12 18 87 88 17 9 25 10 24 89 16 19 86 23 11 24
  • 25.
    RAMANUJAN’S MAGIC SQUARE Itis 22nd Dec 1887. Yes. It is 22.12.1887 BE A PROUD INDIAN 22 12 18 87 88 17 9 25 10 24 89 16 19 86 23 11 25
  • 26.
    3 9 18 1 2.4 1 2 16 1 2 1 15 1 2 1 3.5 1 2 1 3 25 1 2 1 3 1 24 1 2 1 3 1 4.6 1 2 1 3 1 4 1 35 .......... 1 2 1 3 1 4 1 5 1 .....                                     Ramanujan himself supplied the solution to the problem 26
  • 27.
    Deplorable Condition of Ramanujan “Whenfood is the problem, how can I find money for paper? I may require four reams of paper every month.” 27
  • 28.
    Srinivasa Ramanujan at Trinitycollege,Cambridge 28
  • 29.
    • Ramanujan andHardy arrived at Ramanujan’s residence in a cab number 1729. Hardy commented that the number 1729 seemed to be unintresting. Ramanujan said that it is a very intresting mathematical number. 29
  • 30.
    The smallest naturalnumber can be represented in two different ways as a sum of two cubes: 1729=13 +123 =93 +103 It is also incidentally the product of three prime numbers 30
  • 31.
    CONTRIBUTION TO THETHEOREY OF PARTITIONS • A partition of a natural number ‘n’ is a sequence of non-decreasing positive integers whose sum is ‘n’. N No. of PARTITIONS 1 1 2 2 3 3 4 5 5 7 6 11 31
  • 32.
    The highest highlycomposite number listed by Ramanujan is 6746328388800 Having 10080 factors Example: For N=4,PARTITIONS are 4 = 4 =1+3 =2+2 =1+1+2 =1+1+1+1 P(4)=5,Whether P is a partition function 32
  • 33.
    The last threeBooks of Ramanujan 33
  • 34.
    Calculations of Ramanujanin his own handwriting 34
  • 35.
  • 36.
    TOUGH LIFE INENGLAND  Pure vegetarian meals was not available.  Too busy with calculations and very often neglected food and spent till late night.  The cold and damp climate disturbed his health.  He was attacked by Tuberculosis.  He returned to India. 36
  • 37.
    We Miss aGreat Mathmatician • Ramanujan sailed to Indian on 27 February 1919 and arrived on 13 march However his health was very poor. He passed away on 26th April 1920 at Kumbakonam(Tamil nadu) 37
  • 38.
    Recognition by Govt.ofIndia • The Prime Minister of India, Dr. Manmohan Singh has declared the year 2012 as the “National Mathematical Year” and the date December 22, being the birthday of Srinivasa Ramanujan has been declared as the • National Mathematics day” to be celebrated every year 38
  • 39.