🇮🇳 Indian Mathematicians भारतीय गणितज्ञ
9 exam-ready facts · 9 MCQs
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1
1729 is called the Hardy–Ramanujan number; it is the smallest number expressible as the sum of two cubes in two different ways: 1³ + 12³ = 9³ + 10³.
Practice (1)
Q1Which number is known as the 'Hardy–Ramanujan number'?
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Correct answer: D — 1729
1729 = 1³ + 12³ = 9³ + 10³. 6174 is Kaprekar's constant and 2520 is the LCM of 1 to 10. -
2
Srinivasa Ramanujan (1887–1920) was born in Erode (Tamil Nadu); he was elected a Fellow of the Royal Society (FRS) in 1918 and worked with G. H. Hardy at Cambridge.
Practice (1)
Q2With which mathematician did Srinivasa Ramanujan work at Cambridge?
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Correct answer: A — G. H. Hardy
Hardy invited Ramanujan to Cambridge; that is why 1729 is called the Hardy–Ramanujan number. -
3
Brahmagupta wrote the 'Brahmasphutasiddhanta' in 628 CE, which gave rules for computing with zero, treating it as a number.
Practice (1)
Q3Who wrote the 'Brahmasphutasiddhanta'?
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Correct answer: C — Brahmagupta
Aryabhata wrote the 'Aryabhatiya', Bhaskaracharya the 'Siddhanta Shiromani' and Varahamihira the 'Pancha-siddhantika'. -
4
Bhaskara II (Bhaskaracharya, born 1114) wrote the 'Siddhanta Shiromani'; its first part, 'Lilavati', deals with arithmetic.
Practice (1)
Q4The mathematical text 'Lilavati' was written by:
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Correct answer: C — Bhaskaracharya
Lilavati is the first part of Bhaskaracharya's 'Siddhanta Shiromani'. Brahmagupta wrote the 'Brahmasphutasiddhanta'. -
5
Aryabhata gave the value of π as approximately 3.1416 (62832/20000).
Practice (1)
Q5Which approximate value of π did Aryabhata give?
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Correct answer: A — 3.1416
Aryabhata: 62832/20000 = 3.1416. 22/7 ≈ 3.1428 and √10 ≈ 3.1623. -
6
Madhava of Sangamagrama (c. 1340–1425) is regarded as the founder of the Kerala school of astronomy and mathematics; he gave infinite series for π and trigonometric functions.
Practice (1)
Q6Who is regarded as the founder of the Kerala school of astronomy and mathematics?
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Correct answer: D — Madhava of Sangamagrama
Madhava gave an infinite series for π about two centuries before it appeared in Europe. -
7
The decimal place-value system with zero developed in India and reached Europe through Arab mathematicians, which is why it is called the Hindu–Arabic numeral system.
Practice (1)
Q7What is the 0–9 numeral system used today called?
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Correct answer: B — Hindu–Arabic numeral system
It originated in India and reached Europe via the Arabs. Roman numerals have no zero. -
8
P. C. Mahalanobis founded the Indian Statistical Institute (Kolkata) and gave the 'Mahalanobis distance'; his birth anniversary, 29 June, is observed in India as National Statistics Day.
Practice (1)
Q8National Statistics Day in India marks the birth anniversary of:
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Correct answer: D — P. C. Mahalanobis
29 June is Mahalanobis's birth anniversary; 22 December (Ramanujan) is National Mathematics Day. -
9
Shakuntala Devi is known as the 'Human Computer'; on 18 June 1980 at Imperial College, London, she gave the product of two 13-digit numbers in 28 seconds, a feat recorded in the 1982 Guinness Book of World Records.
Practice (1)
Q9Who is popularly known as the 'Human Computer'?
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Correct answer: B — Shakuntala Devi
Shakuntala Devi was famous for mental calculation; Anandibai Joshi was one of the first Indian women doctors.