Newly published: A landmark book on Indian mathematics
I am honoured to be one of the first recipients of this new book by Prof. K. Ramasubramanian of IIT Bombay. “The Elusive Ratio and the Advent of Calculus in India” is the result of meticulous multidisciplinary research in mathematics and Sanskrit.
Prof. Ramasubramanian is a renowned scholar of both Sanskrit and mathematics (he holds a doctorate in Theoretical Physics, a master’s degree in Sanskrit, and a bachelor’s degree in engineering). He has authored three books on Indian mathematical treatises—“Gaṇita-Yukti-Bhāṣā”, “Tantrasaṅgraha”, and “Karaṇapaddhati” (all published by Hindustan Book Agency and later by Springer Verlag).
In his latest book, running to around 450 pages, Prof. Ramasubramanian documents and explains the development of approximations of and expressions for pi (π, “the elusive ratio”) given by Indian mathematicians over hundreds of years. It starts with Vedic ritual geometry and the Śulbasūtras, covers the seminal contributions of Āryabhaṭa and Brahmagupta, and culminates in the infinite power series for π given by Mādhava of Saṅgamagrāma. The book thus traces the lineage of mathematical ideas that predated some aspects of modern calculus, developed in Europe, by three hundred years. The book offers an accurate account of the history of mathematical ideas in India: there is no hyperbole, no tall claim, and no sweeping history in the book. It situates the Sanskrit works in their historical and intellectual context, presents the Sanskrit verses and text, and explains their meanings with detailed diagrams, tables, and notes.
The book is a must-read for students and scholars of the history of mathematics and Indian Knowledge Systems. I congratulate Prof. Ramasubramanian and the publisher, Garuda Prakashan, for bringing out this landmark book. I also thank Prof. Ramasubramanian for sending me a complimentary copy.
Bibliographic details: K. Ramasubramanian. “The Elusive Ratio and the Advent of Calculus in India”. City of Gurugram: Garuda Prakashan Pvt. Ltd., June 2026. ISBN 978-93-476-9139-3. Paperback.
"The Elusive Ratio and the Advent of Calculus in India", by Prof. K. Ramasubramanian
Publisher: Garuda @GarudaPrakashan
Book's available at @PadhegaIndia_
https://t.co/Z2Var70VJ0
Minister @krishnabgowda this is deep corruption at work. Please check how many dogs were ‘sterilized’ are there so many dogs at all? This racket has been going on for years. Please verify @DKShivakumar@BPACofficial
Heartiest birthday wishes to the legendary scientist and Bharat Ratna, Prof. C. N. R. Rao.
Your relentless pursuit of scientific excellence, unwavering commitment to research, and remarkable contributions to advancing knowledge have earned you global admiration. You have not only elevated India’s standing in the world of science but have also inspired countless young minds to dream bigger and strive for excellence.
May you be blessed with good health, happiness, and many more years of guiding and inspiring future generations. Wishing you a wonderful birthday!
Done deal I said on 27th as per below tweet, and it is proven true now!!!
How much @annamalai_k ?!
If annamalai is keen on justice and also taking in TR Baalu, then he will pursue the matter and prove that it was malicious case.
But, he won't do it because of the deal!!!
A 15-year-old dream has come true today. I started a PhD with the dream of creating a system that chants any Sanskrit shloka perfectly.
And here I am opening sourcing 𝐕𝐚𝐠𝐝𝐡𝐞𝐧𝐮 - 𝐀 𝐯ṛ𝐭𝐭𝐚 (𝐦𝐞𝐭𝐞𝐫) 𝐚𝐰𝐚𝐫𝐞 ś𝐥𝐨𝐤𝐚-𝐭𝐨-𝐜𝐡𝐚𝐧𝐭 𝐭𝐞𝐱𝐭-𝐭𝐨-𝐬𝐩𝐞𝐞𝐜𝐡 (TTS) 𝐬𝐲𝐬𝐭𝐞𝐦 𝐟𝐨𝐫 𝐒𝐚𝐧𝐬𝐤𝐫𝐢𝐭. This is the world's first vrutta-aware, open-source TTS for Sanskrit Chanting.
Just before Mundhanai Mudichu, Pandiarajan, Livingston, and GM Kumar left Bhagyaraj to make Kanni Raasi. This scene was Bhagyaraj’s response. They returned the favour by casting a Bhagyaraj lookalike in Kanni Raasi and asking for his forgiveness.
📢Announcement🚨
Sri Chandramouleshwara Pooje scheduled on June 29, 2026 at V K Convention Centre in Yelahanka is cancelled. Jagadguru will instead bless devotees at MEC School Auditorium in Yelahanka New Town (located on the same road) Tomorrow, June 29, 2026, at 6:00 PM.
Computational Mathematics by B. P. Demidovich,
I. A. Maron
to give as far as possible a
systematic and modern presentation of the most important methods and techniques of computational #mathematics#soviet#books#programming#functions#mir
https://t.co/x2UmtrNikO
The DMK ecosystem is attacking me that the school issue I reported was a lie I concocted to help the TVK government. Let me state the facts.
We run two rural schools, both free NIOS schools under the Kalaivani Kalvi Maiyam umbrella, one in rural Tenkasi and the other in rural Theni.
The Theni school was originally started and run by a retired IPS officer, a honest and upright man. He built very nice facilities but had to shut down his CBSE school because the state government demanded too much money to issue the NOC. He told me that as a honest retired officer he did not have the money to pay and they would not issue the NOC otherwise.
He urged us to take over his trust so we could run our free NIOS school in the premises. That is how we started our NIOS school in Theni.
Unlike in Tenkasi, where I live, the Theni school faced occasional harassment from the DMK government because we did not have a state government registration, so we tried getting state government approval again (this time for the state board) and that of course would also cost money. So it was in a limbo.
Meanwhile in Tenkasi we wanted to build new school facilities (we were operating in make-shift facilities, the ones that came in frequent photos) and we applied for DTCP approval to construct the new buildings. Everyone who knows DTCP in our state knows what kind of corruption happened there under the DMK.
We waited patiently for DTCP approval for the new school buildings but the approval never came as long as the DMK was in power. The approval came automatically once the government changed.
It is this DTCP approval that I posted about in X. I want to once again appreciate the refreshing change.
Not only did the approvals come, government people told us not to pay money to anyone for any approvals. I have to appreciate this in public, having endured what we had endured before.
This is the "lie" that DMK wants to attack me on.
I do not need their certificate on my character.
They can examine their conscience and ask why a technology nerd like me who is mostly immersed in code would post these.
If they think I would back down by their vile personal attacks because I am a Brahmin or TVK Stooge or Sanghi or whatever, I will tell them this: unlike you dynasts I grew up with nothing. I studied in Tamil medium schools. I know how to live on nothing. I have dedicated the remainder of my life to make Bharat self reliant in technology while reviving our rural areas, the soul of our eternal sanatana civilization.
I will not be intimidated by their attacks. I am unafraid of death, why would I be afraid of the mere DMK?
And if they had any conscience they can return the money they looted (they know there they keep it) and then they can attack my character.
I will now go back to optimizing the code of our compiler!
Our rural school Kalaivani Kalvi Maiyam, which provides completely free education to rural children, faced delays getting approvals from the previous government. Of course, significant money was demanded and we were told that was the only way, even if it is a completely free school.
After @TVKVijayHQ came to power, approvals have happened quickly and automatically.
I am very happy to appreciate this positive development in our state. Thank you Thiru Vijay Avl for this refreshing change🙏