Info on S.P.Sundaram, Tamil mathematician

[Naina_Marbus]

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Does anybody in the forum know any information about the whereabouts of one S.P.Sundaram, a mathematician from satyamangalam? If he were alive today , he would probably be around 100 years old! Perhaps there is someone in the forum who knows his family?

What fired me up was a report in the Plus magazine. Plus is an internet magazine which claims to introduce readers to the beauty and the practical applications of mathematics. I came across an article titled :"Sundaram's Sieve" by Julian Havil
(Here is the link: Sundaram's Sieve | plus.maths.org)

I am quoting the relevant paragraph below:

"....we ..have algorithms that can find all the primes up to a given number. In this article we'll look at an example of such an algorithm, in which the primes pop out of a very simple, and highly regular, structure as if by magic. It's called the sieve of Sundaram, after an obscure East Indian mathematician by the name of S.P. Sundaram, who discovered it in the 1930s.

Wiki.answers.com wants to know: Wikianswers_Qn_on_SPSundaram

Can you answer this question?
Are there any details given on SP Sundaram?

Wikipedia has an entry as follows under the heading “Sieve of Sundaram”:

Sieve of Sundaram : In mathematics, the sieve of Sundaram is a simple deterministic algorithm for finding all prime numbers up to a specified integer. It was discovered in 1934 by S. P. Sundaram, an Indian student from Sathyamangalam.

And a Facebook page: Sieve of Sundaram

If any one has any information about the whereabouts of S.P.Sundaram or his family, please share it here, so that it can be archived on the internet.

Most likely he would be a tbram.

We should not let him go into oblivion. No more of statements like: "an obscure East Indian mathematician by the name of S.P. Sundaram, who discovered it in the 1930s."

 

[Visalakshi Ramani]

People living in and around Satyamangalam please RISE to the occasion!

We should NOT allow the mathematical genius who had created a sieve for separating the prime numbers long before the calculating machines and computers were invented go into oblivion!

Remember he was an Indian.

He was also a Tamilian.

He might have been a tam bram too.

Does anybody in the forum know any information about the whereabouts of one S.P.Sundaram, a mathematician from satyamangalam? If he were alive today , he would probably be around 100 years old! Perhaps there is someone in the forum who knows his family?

What fired me up was a report in the Plus magazine. Plus is an internet magazine which claims to introduce readers to the beauty and the practical applications of mathematics. I came across an article titled :"Sundaram's Sieve" by Julian Havil
(Here is the link: Sundaram's Sieve | plus.maths.org)

I am quoting the relevant paragraph below:


Wiki.answers.com wants to know: Wikianswers_Qn_on_SPSundaram



Wikipedia has an entry as follows under the heading “Sieve of Sundaram”:


And a Facebook page: Sieve of Sundaram

If any one has any information about the whereabouts of S.P.Sundaram or his family, please share it here, so that it can be archived on the internet.

Most likely he would be a tbram.

We should not let him go into oblivion. No more of statements like: "an obscure East Indian mathematician by the name of S.P. Sundaram, who discovered it in the 1930s."

 

[saarangam]

This is the wonderful Sundaram Sieve - Courtesy : Pat's Blog - The mathematical (and other) thoughts of a math teacher - Monday 1 March 2010

Around 1930, a little known or remembered Indian mathematician named S.P. Sundaram came up with a different sieve. It operates on simple arithmetic sequences.

Start with 4 and create an arithmetic sequence by repeatedly adding three... 4, 7, 10, 13, 16, 19, 22...
In the second row, start with seven, and add five each time 7, 12, 17, 22, 27,....
continue starting with each number in the first sequence as the initial term, and to each sequence add the next consecutive odd number...

It looks like this
4 7 10 13 16 19 22 25 28
7 12 17 22 27 32 37 42 47
10 17 24 31 38 45 52 59 66
13 22 31 40 49 58 67 76 85
16 27 38 49 60 71 82 93 104


Ok, some are prime, some are not....what's up.... Take any number that appears in the list, multiply by two and add one.... Now check, Is it prime??
Try another... and time after time it turns out the number is NOT prime. 17 is in the numbers, and 2(17)+1 = 35, which is not prime...
But now find a number that does not show up in the list... five is not there, neither is six, or eight, or lots of others. Repeat the 2n+1 idea and Voila..primes emerge.

 

[Naina_Marbus]

This is the wonderful Sundaram Sieve - Courtesy : Pat's Blog - The mathematical (and other) thoughts of a math teacher - Monday 1 March 2010

Around 1930, a little known or remembered Indian mathematician named S.P. Sundaram came up with a different sieve. It operates on simple arithmetic sequences.

Start with 4 and create an arithmetic sequence by repeatedly adding three... 4, 7, 10, 13, 16, 19, 22...
In the second row, start with seven, and add five each time 7, 12, 17, 22, 27,....
continue starting with each number in the first sequence as the initial term, and to each sequence add the next consecutive odd number...

It looks like this
4 7 10 13 16 19 22 25 28
7 12 17 22 27 32 37 42 47
10 17 24 31 38 45 52 59 66
13 22 31 40 49 58 67 76 85
16 27 38 49 60 71 82 93 104


Ok, some are prime, some are not....what's up.... Take any number that appears in the list, multiply by two and add one.... Now check, Is it prime??
Try another... and time after time it turns out the number is NOT prime. 17 is in the numbers, and 2(17)+1 = 35, which is not prime...
But now find a number that does not show up in the list... five is not there, neither is six, or eight, or lots of others. Repeat the 2n+1 idea and Voila..primes emerge.

Thanks for this new link. I missed it somehow when I was googling for Sundaram.