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Re: Typo in Ramanujan's letter to Hardy

Subject: Re: Typo in Ramanujan's letter to Hardy
From: "Jon Slaughter"
Date: Sat, 30 Sep 2006 08:04:24 -0500
Newsgroups: sci.math
<titus_piezas@xxxxxxxxx> wrote in message 
news:1159617129.457796.32290@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Hello all,
>
> Most of us here have heard of Ramanujan's letter to Hardy.  This is
> from www.maths.abdn.ac.uk/courses/mx4531/chap_gamma/pdf/ram.pdf  :
>
> "S. Ramanujan to G.H.Hardy
> 16 Jan 1913
> Madras
>
> Dear Sir,
>
> I beg to introduce myself to you as a clerk in the Accounts Department
> of the Port Trust Office at Madras on a salary of only 20 pounds per
> annum.  I am now about 23 years of age.  I have had no University
> education..."
>
> An identical letter is also given here,
> http://www.parabaas.com/SHEET2/LEKHA10/bCarr_eng.html a nice article by
> the mathematical physicist Amitabha Sen.
>
> But since Ramanujan had the lifespan (1887-1920), died 32 (he would
> have turned 33 on Dec) then 1913-1887 = 26, so he was 26 when he sent
> the letter.  (When I realized this I had to check my calculator twice.)
> For somebody who instantly recognized/remembered that 1729 = 1^3+12^3 =
> 9^3+10^3, I don't think he would make an arithmetical mistake on his
> age!  So the only conclusion is that this is a typo. Even Wikipedia
> picked up this mistake and in fact that was where I first noticed it.
>
> So where did this typo start? Is it in the book "Ramanujan: Letters and
> Commentary" or is the correct age given there? (If you have JSTOR
> access it should be there.)
>

In the book "The man who knew infinity" I remember the age being more than 
23. I could be wrong though. I do think it was 26 or something like that but 
its been about 8 years since I read the book ;/



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