True Indology (@TIinExile) on X

As a student, I was quite fascinated by the Fibonacci treatise. Specifically, I was working on its closed form expression and its relation to Golden Ratio. I brought a copy of Fibonacci's book "Liber Abaci" to see how the master himself derived it. His introduction SHOCKED me

In the introduction to his book, Fibonacci (c. 13th century CE) makes the following revelations 1) "I am the son of an official working in Bugia, Algeria". 2) There was a colony of Indian Merchants in that city. 3) "It was there that I was introduced to Indian Mathematics".

Fibonacci further says- " I loved Indian Mathematics to such an extent above all others that I completely devoted myself to it" "I was also introduced to Greek, Arabic & Egyptian Math" "But I found ALL of them, EVEN Pythagoras, to be erroneous compared to Indian Mathematics"

Fibonacci further says: "For this reason, basing my book COMPLETELY on Indian methods and applying myself with greatest attention to it, but not without adding something of my own thought, I forced myself to compose this book. I demonstrated everything with proof"

Finally, Fibonacci says: " In my book, I have published the doctrine of Mathematics completely according to the Method of Indians. I have COMPLETELY adopted the (Mathematical) Method of Indians because it is the MOST effective"

Thus, in his book, Fibonacci does NOT refer to #Fibonacci Series as "Fibonacci Series" Rather, he simply calls it "Indian Series". Unlike many other Europeans, Fibonacci was NOT a plagiarist. He clearly mentioned his source and acknowledged his credit to ancient Indians.

Fibonacci's introduction makes it clear that he considered himself "Indian Mathematician" insomuch as he adhered to Indian Mathematical Methodology and contributed to it. The real name of the so called "Fibonacci Series" is "Indian Series". This comes from the horse's mouth !

So far as the so called "Fibonacci Series" is concerned, Fibonacci was only TRANSLATING the Sutras of Pingala (c.3rd century CE) and his commentator Virahanka who derived "Fibonacci Series" several hundreds of years before Fibonacci was even born

I was very shocked reading Fibonacci's introduction. Why are these facts kept concealed? A more important question. Why should it be called 'Fibonacci series' when Fibonacci himself does not claim to have discovered it and simply acknowledges Indian Mathematics as his source?

The precepts of Pythagoras and Euclid were forgotten in early middle ages and revived only later. Yet, the credit always goes to Pythagoras and Euclid. Never to the later day Mathematicians who revived their works. Why is Pingala never extended the same courtesy? I wonder why!

Fibonacci was NOT a European Mathematician, except by flesh and blood. He explicitly rejected the European methodology of Mathematics. He denounced even the path of Pythagoras as "erroneous". He followed footsteps of exemplary Vaidika Mathematicians like Pingala and Virahanka

Fibonacci does not describe his book as "European Mathematics". He explicitly describes his book as " treatise on Indian Mathematical methods". As such, it is hard to even consider him a "European Mathematician". He followed the footsteps of Vaidika Sanskritic Mathematicians

I am reluctant to use a word like 'Eurocentrist'. I do not want to judge a whole civilization. But in this case atleast, I do believe such a factor is at play. Voluntarily or involuntarily, ancient Indian mathematicians do not get the international recognition they truly deserve

Reference and the source of screenshots I have used in the thread: English translation of introduction to Fibonacci's book "Liber Abaci". Published in the scholarly journal Reti Medievali Rivista by Giuseppe Germano (2013)