1,126 reputation
315
bio website
location Turku, Finland
age 25
visits member for 1 year, 7 months
seen 17 hours ago

Mathematics student with a lot of interest to computer sciences and statistics.


Jul
5
comment Maximum length of a representation of a number as an alternating sum of squares
@TonyK Yes, I think that is probably the smallest such n. I calculated it myself just a few minutes ago.
Jul
5
accepted Maximum length of a representation of a number as an alternating sum of squares
Jul
5
comment Maximum length of a representation of a number as an alternating sum of squares
@KarolisJuodelė You essentially answered my question and gave me a way to find a counterexample. If you could formulate this as a proper answer, I could give you the points.
Jul
5
revised Maximum length of a representation of a number as an alternating sum of squares
edited title
Jul
5
comment Maximum length of a representation of a number as an alternating sum of squares
@KarolisJuodelė Ah, yes. You are right. The numbers needed to get 9 are just huge, though. Kn of 89999999999999999999100000008999154 is 9....
Jul
5
revised Maximum length of a representation of a number as an alternating sum of squares
edited title
Jul
5
asked Maximum length of a representation of a number as an alternating sum of squares
Jul
2
awarded  Curious
Jul
2
awarded  Inquisitive
Jun
26
reviewed Reviewed Drawing previously undrawn cards from a deck
Jun
26
reviewed Reviewed Can we derive the slope or first derivative from the golden rectangle-circle?
Jun
26
comment Can we derive the slope or first derivative from the golden rectangle-circle?
Do you want the slope of the circle or some function? Could you explain what you mean a bit more?
Jun
26
reviewed Reviewed I need help with trying to answer this question. I know I have to find the derivative; but I do not know what to do after that.
Jun
26
comment I need help with trying to answer this question. I know I have to find the derivative; but I do not know what to do after that.
You could make the headline a bit more informative about the question itself and tell what you have done in the text area.
Jun
26
reviewed Reviewed Derivative of a Trigonometric Function Help
Jun
26
comment Derivative of a Trigonometric Function Help
Either you have an error in the original function or your text book is wrong. The integral of the text book solution is not equal to the original function.
Jun
25
reviewed Reviewed Showing that $||f||_1 \leq 3^{-1/2}||f'||_p$
Jun
25
comment Showing that $||f||_1 \leq 3^{-1/2}||f'||_p$
Is this a homework problem?
Jun
25
reviewed No Action Needed Analytic continuation of given power series
Jun
24
reviewed Reviewed Sobolev space: $\vert u\vert^{p-2}u $ belongs to $u\in W^{1,p'}(\Omega)$