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National Mathematics Day 2025: Celebrating the Birth Anniversary of Srinivasa Ramanujan

Author: VisionIAS Editorial Team

Dec 22, 2025Current Affairs8 min read

National Mathematics Day 2025: Celebrating the Birth Anniversary of Srinivasa Ramanujan

Observed annually on December 22nd, National Mathematics Day commemorates the birth anniversary of the great mathematician, Srinivasa Ramanujan.

Every December 22, India pauses to honor one of its most extraordinary minds, Srinivasa Ramanujan, whose birth anniversary is commemorated as National Mathematics Day. This annual observance represents a national commitment to mathematical excellence and a reminder of how intuitive genius can reshape entire disciplines.

Table of Contents

Origins of National Mathematics Day

National Mathematics Day was formally instituted on December 26, 2011, by then Prime Minister Dr. Manmohan Singh during the 125th birth anniversary celebrations of Srinivasa Ramanujan at Madras University. The declaration was important because it recognized Ramanujan’s legacy while also aiming to inculcate India’s rich mathematical history in modern schooling.

The year 2012 was subsequently designated as the National Mathematics Year, launching initiatives to revitalize student interest and encourage research in mathematics. Today, as we observe Maths Day 2025, the occasion has evolved into a focal point for discussing mathematics in the context of artificial intelligence, data science, and modern theoretical physics.

Srinivasa Ramanujan: The Man who knew Infinity

Born on December 22, 1887, in Erode, Tamil Nadu, Srinivasa Ramanujan emerged from humble circumstances to become one of history’s most celebrated mathematical minds. His journey from a clerk’s son in Kumbakonam to a Fellow of the Royal Society represents both triumph and tragedy.

Ramanujan’s mathematical education was largely autodidactic (self-learning without a formal teacher). At age 16, he encountered G.S. Carr’s “A Synopsis of Elementary Results in Pure and Applied Mathematics,” a collection of roughly 5,000 theorems stated with minimal proofs. This book profoundly shaped his approach, forcing him to reconstruct derivations independently. It helped Srinivasa Ramanujan develop a highly intuitive, result-oriented methodology that would define his legacy.

Despite his brilliance, Srinivasa Ramanujan failed his college examinations twice because his obsession with mathematics led him to neglect other subjects. From 1907 to 1912, he lived in extreme poverty, tutoring students for meager fees while filling notebooks with groundbreaking theorems that would later astound the mathematical world.

Cambridge Years and Global Recognition

In 1913, Srinivasa Ramanujan wrote to G.H. Hardy at Trinity College, Cambridge, including 120 theorems on infinite series and number theory. Professor Hardy’s response is legendary, initially skeptical, he and his colleague J.E. Littlewood spent an evening analyzing the formulas and concluded that many were entirely new and staggeringly profound.

Ramanujan arrived in England in 1914, beginning an intense five-year collaboration with Professor Hardy. In 1918, Srinivas Ramanujan became a Fellow of the Royal Society at just 31, one of the youngest ever elected and the second Indian to be admitted.

Srinivasa Ramanujan Famous Formulas: Mathematics That Defies Time

The Srinivasa Ramanujan famous formulas continue to influence modern science. His work spans number theory, infinite series, and mathematical analysis, but several contributions stand out for their enduring relevance.

Infinite Series for Pi

The most famous formula of Srinivasa Ramanujan is series representations for π. His 1914 paper “Modular Equations and Approximations to π” included formulas of remarkable efficiency. One series adds roughly eight decimal places of accuracy per term which is exponentially faster than classical methods. Modern algorithms for calculating π to trillions of digits on supercomputers derive directly from Srinivasa Ramanujan’s work.

Astonishingly, recent research from the Indian Institute of Science has revealed that these formulas aren’t merely computational curiosities. When physicists optimize scattering amplitudes in string theory (unites Einstein’s theory of relativity with quantum mechanics, proposing that everything is made of tiny, vibrating strings), the mathematical terms that emerge are identical to Srinivasa Ramanujan’s series. This suggests that his intuition had somehow accessed the geometric structure underlying quantum gravity itself.

Partition Function

Srinivasa Ramanujan’s work on partitions, the number of ways an integer can be expressed as a sum of positive integers, revolutionized analytic number theory. Collaborating with Professor Hardy, he developed the “Circle Method,” a technique using complex analysis that remains fundamental to modern mathematical research. This method helped establish asymptotic formulas (mathematical expressions that become increasingly accurate as a variable approaches a limit, typically infinity) for partition functions that would be impossible to calculate directly.

Mock Theta Functions and Black Holes

His final work described 17 “mock theta functions” which for decades remained mysterious. The revelation came in the 21st century: mock theta functions provide the mathematical framework for counting quantum states in black hole physics. They underpin calculations of black hole entropy, connecting Srinivasa Ramanujan’s purely mathematical insights to fundamental questions about the universe’s structure.

Hardy-Ramanujan Number

The story of 1729, the “Hardy-Ramanujan number” captures Srinivasa Ramanujan’s extraordinary intuition. When Professor Hardy mentioned his taxi number seemed dull, Srinivasa Ramanujan immediately identified it as the smallest number expressible as the sum of two cubes in two different ways (1³ + 12³ = 9³ + 10³). This wasn’t just a quick calculation; it came from his deep understanding of how numbers relate to one another, a field that still shapes modern geometry today.

Contemporary Significance of National Mathematics Day

As we observe Maths Day 2025, the celebration includes recognizing contemporary mathematicians who carry forward Srinivasa Ramanujan’s legacy. The SASTRA Ramanujan Prize, established in 2005, awards mathematicians aged 32 or younger, honoring Srinivasa Ramanujan’s age at death. This year’s laureate, Dr. Alexander Smith of Northwestern University, has made breakthrough contributions to number theory, particularly in elliptic curves and class number distribution.

The day’s observance extends beyond academic circles. Schools across India celebrate “Ganit Week” with mathematics olympiads, innovation fairs, and lectures demonstrating mathematics’ real-world applications. The Ramanujan Math Park in Andhra Pradesh offers children hands-on experiences with mathematical concepts, addressing the “math phobia” that affects many students.

Conclusion

More than a century after his death, Srinivasa Ramanujan’s influence continues to expand. Each National Mathematics Day celebration reveals new dimensions of his work’s significance. His notebooks remain what mathematicians call a “limitless resource”, cryptic codes that reveal deeper meaning as our understanding advances.

Srinivasa Ramanujan’s message to the world is clear: mathematics isn’t merely academic, it’s a universal language connecting abstract numbers to physical reality. His life demonstrates that with intuition, persistence, and passion, even those from humble backgrounds can contribute to humanity’s greatest intellectual achievements.

As India commemorates Srinivasa Ramanujan’s birth anniversary, we celebrate not just past accomplishments but ongoing discoveries in mathematics, recognizing that the most profound mathematical insights often come from those who see patterns others miss and dare to follow their vision wherever it leads.

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