# Srinivasa Ramanujan proved that 1+2+3+... = -1/12???

• Oct 22nd 2008, 11:16 PM
mrt1
Srinivasa Ramanujan proved that 1+2+3+... = -1/12???
Went to see dissapearing number last night at the Barbican. Apparently,

Srinivasa Ramanujan proved that 1+2+3+... = -1/12, I believe using the zet function?

Can anyone explain how this can be. I am high sch maths teacher, but would like to see how this is proved.
If you can help, I would really appreciate it.

Thanks

Mrt1(Nerd)
• Oct 23rd 2008, 12:26 AM
CaptainBlack
Quote:

Originally Posted by mrt1
Went to see dissapearing number last night at the Barbican. Apparently,

Srinivasa Ramanujan proved that 1+2+3+... = -1/12, I believe using the zet function?

Can anyone explain how this can be. I am high sch maths teacher, but would like to see how this is proved.
If you can help, I would really appreciate it.

Thanks

Mrt1(Nerd)

CB
• Oct 23rd 2008, 02:40 AM
mrt1
sr ramanujan's summation to equal -1/12
I need some help with this. Every wb page I look at is either full of maths, I've not seen for years, or these is a proof in a physics forum that

Ramanujan Summation and Divergent series in relation to the Riemann Zeta function. I'm not sure is concrete.

What is the R next to the -1/12?

• Oct 23rd 2008, 03:19 AM
CaptainBlack
Quote:

Originally Posted by mrt1
I need some help with this. Every wb page I look at is either full of maths, I've not seen for years, or these is a proof in a physics forum that

Ramanujan Summation and Divergent series in relation to the Riemann Zeta function. I'm not sure is concrete.

What is the R next to the -1/12?