Little math problem(s) February 2019

[Thomas Klemm]

(02-23-2019 01:23 PM)pier4r Wrote:  One has a set of positive integers
I = { i1,...., iN }

the question is: can we identify uniquely I if the sum
S1= sum (i1, ... , iN)
and
S2 = sum (i1^2, ..., iN^2 )
are given?

This is all I had to add to make it LaTeX:

Code:

I = \{ i_1,...., i_N \}

S_1= \sum (i_1, ... , i_N)

S_2 = \sum (i_1^2, ..., i_N^2 )

Include everything in \​(…)\ and we're done:

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One has a set of positive integers
\(I = \{ i_1,...., i_N \}\)

the question is: can we identify uniquely I if the sum
\(S_1= \sum (i_1, ... , i_N)\)
and
\(S_2 = \sum (i_1^2, ..., i_N^2 )\)
are given?

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This online LaTeX Equation Editor may help.

Cheers
Thomas