Men of older generation used to say that all knowledge is there in the Vedas. Anyone who hears such words will have the first reaction that it is an over confident statement. We should remember here that any sloka in the ancient Hindu manuscripts has more than one meaning.

A Sloka in the 10th book of Rig Veda appears to be written for praising Lord Indra.

The technical translation of that Sloka gives the value of Pi up to 28 digits accurately. It is not until the invention of the computers that the western mathematicians could get this value up to 16 digits accurately. Here is a test for those who think that a computer can do any calculation. Use the fastest computer available to you and write a program to calculate the value of Pi up to 28 digits accurately. You will know how difficult it is.