Today
is the 129^{th} birth anniversary of great Indian
Mathematician Srinivasa Ramanujan and so is National Mathematics Day.

Srinivasa
Ramanujan was born on 22 December 1887 in Erode, Tamil Nadu. He is a man known
for his work done in the field of mathematics. And that too with no formal
training of that subject which others are getting in European countries. Ramanujan developed his own mathematical
research in isolation. Some extraordinary contribution done by him in the field
of mathematics are – mathematical analysis, number theory, infinite series, and
continued fractions. Along with this, the legend has provided many theorems.

He
was enrolled into Telegu School, but found it too tiring and uninteresting to
attend school and mostly he use to ran away from there. Later in 1904, he
graduated from Town Higher Secondary School. He also received a scholarship to
study at Government Arts College in Kumbakonam. During his studies he was so
influenced by studying mathematics that he could not focus on any other subject
and failed in all of them. This resulted him in losing the scholarship. Later,
without any degree, he left the college and continued to pursue independent
research in mathematics.

His
unconditional love for mathematics was driving him to develop new things for
that subject, but to support his livelihood he was working as a clerk in the
Accountant-General's office at the Madras Port Trust Office. He kept working on
inventing new mathematical theorems and continuously tried contacting the
experts from west. G.H. Hardy, an academician at the University
of Cambridge, recognized the brilliant work produced by Ramanujan and invited
him to visit and work with him at Cambridge. Here, Ramanujan became a Fellow of
the Royal Society and a Fellow of Trinity College, Cambridge.

Some
of the known works, produced by this great mind, are - Landau–Ramanujan
constant, Mock theta functions, Ramanujan conjecture, Ramanujan prime,
Ramanujan theta function, Ramanujan's sum, Rogers–Ramanujan identities and
Ramanujan's master theorem.

Ramanujan
died on 26th April, 1920, when he was only 32 years of age. In this short life
he gave around 3900 results, mostly equations and identities and almost all of
them prove to be correct and original.

G. H. Hardy liked to rank
mathematicians on a scale of 1 to 100, and he gave himself 25, Littlewood 30,
David Hilbert 80, and Ramanujan 100, which shows just how great Ramanujan was.

The Indian mathematical genius
Srinivasa Ramanujan was born on 22 December 1887. It was
in recognition of his contribution to mathematics the Government of India decided to celebrate Ramanujan's
birthday as the National Mathematics Day every year and to celebrate 2012 as
the National Mathematical Year.
Please check the following **Album **having more information about him.