Aryabhata was an Indian mathematician and astronomer from the classical age of India who lived from 476 to 550 CE. He made several important contributions to mathematics including the solution of quadratic equations and calculating pi to 4 decimal places. Bhaskaracharya was an Indian mathematician who lived from 1114 to 1185 CE. He was the first to state that division by zero results in infinity and wrote extensively on topics including zero, surds, and trigonometry. Brahmagupta was an Indian mathematician from the 7th century who made contributions to astronomy and mathematics including early work on zero and the modern number system.

3. Aryabhata
Born 476 CE
Died 550 CE
Era Gupta era
Main interests Mathematics ,
astronomy
Notable ideas Solution of single
variable quadratic equation, value
of π correct to 4 decimal places.

4. • Aryabhata is sometimes called to be the one
who gave the world the digit zero.
• He did not use a symbol for zero; its
knowledge was implicit in his place-value
system as a place holder for the powers of
ten with null coefficients.
• His other works include theorems on
trigonometry, arithmetic, algebra, quadratic
equations and the sine table.
• He is called the first of the great
astronomers of the classical age of India .

5. BHASKARACHARYA
Born 1114 AD
Died 1185 AD
Residence Vijayapura. Ujjain
Fields Mathematics,
Astronomy
Institutions Astronomical
observatory
Philosophers Varahamihira,
Bramagupta

6. • He was born in a village of Mysore district.
• He was the first to give that any number divided
by 0 gives infinity (00).
• He has written a lot about zero, surds,
permutation and combination.
• He wrote, “The hundredth part of the
circumference of a circle seems to be straight.
Our earth is a big sphere and that’s why it
appears to be flat.”
• He gave the formulae like sin(A ± B) =
sinA.cosB ± cosA.sinB

7. BRAHMAGUPTA
Born 598
Died after 665
Residence Rajasthan
Fields astronamy,
Mathematics.
Known for Zero, modern
number system

8. • He gave four methods of multiplication.
• He gave the following formula, used in
G.P series
• a + ar + ar2 + ar3 +……….. + arn-1 = (arn-
1) ÷ (r – 1)
• He gave the following formulae :
• Area of a cyclic quadrilateral with side a,
b, c, d= √(s -a)(s- b)(s -c)(s- d) where 2s =
a + b + c + d.

9. ramanujan
• Born 22 December 1887
• Died 26 April 1920 (aged 32)
• Known for Landau–Ramanujan constant
Mock theta functions
Ramanujan conjecture
Ramanujan prime
Ramanujan–Soldner constant
Ramanujan theta function
Ramanujan's sum
Rogers–Ramanujan identities
Ramanujan's master theorem

10.  He showed extraordinary liking for
mathematics. When he was yet in school,
he mathematically calculated the
approximate length of earth’s equator. He
very clearly knew the values of the square
root of two and the pie value.
The number 1729 is known as the
Hardy–Ramanujan number after a famous
anecdote of the British mathematician G.
H. Hardy regarding a visit to the hospital
to see Ramanujan.