Aryabhata · Mathematics

The Value of Pi: Approaching the Uncatchable

Aryabhata&rsquo;s strikingly accurate value of pi - 3.1416, correct to four places - and the single word <em>asanna</em>, &lsquo;approaching,&rsquo; with which he may have signalled that the true ratio can never be exactly caught.

What you'll be able to recall

You learned that Aryabhata computed the circumference-to-diameter ratio as 62,832 to 20,000, that is 3.1416, accurate to four decimal places, and that he described it with the word asanna (&lsquo;approaching&rsquo;), which some scholars read as a hint that pi is irrational. Explain the achievement and the meaning of t…

Leads to Archimedes of Syracuse.

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