219 reputation
17
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location France
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visits member for 2 years, 11 months
seen May 21 '13 at 10:04

May
18
awarded  Nice Question
May
21
awarded  Caucus
Nov
22
accepted $2n+1$ and $n^2+1$ are always coprime or their gcd is $5$
Nov
22
awarded  Yearling
Nov
22
asked $2n+1$ and $n^2+1$ are always coprime or their gcd is $5$
Sep
16
comment Simplification of expressions containing radicals
I could verify that Maple doesn't automatically equates the example expression to 1, but applying its simplify function to it yields 1
Sep
16
awarded  Commentator
Sep
16
comment square root of $1/2 + \sqrt3/2?$
I checked your answer as the correct one because I like the trick for its fun and relative simplicity.
Sep
16
accepted square root of $1/2 + \sqrt3/2?$
Sep
16
comment square root of $1/2 + \sqrt3/2?$
Thanks, though my question was not about rational coefficients specifically. I was more concerned about the validity of my therefore, for which your answer is useful.
Sep
16
awarded  Supporter
Sep
16
comment square root of $1/2 + \sqrt3/2?$
Thanks. My question was not particularly about rational coefficient, but the consideration is interesting.
Sep
15
asked square root of $1/2 + \sqrt3/2?$
Sep
11
comment closed form for $d(4)=2$, $d(n+1)=d(n)+n-1$?
thanks for this insight.
Sep
11
awarded  Editor
Sep
11
revised closed form for $d(4)=2$, $d(n+1)=d(n)+n-1$?
edited body
Sep
11
comment closed form for $d(4)=2$, $d(n+1)=d(n)+n-1$?
Yes sorry, English is my 2nd language. I edited the question
Sep
11
comment closed form for $d(4)=2$, $d(n+1)=d(n)+n-1$?
Thanks, I need to get more familiar with this telescoping idea.
Sep
11
accepted closed form for $d(4)=2$, $d(n+1)=d(n)+n-1$?
Sep
11
asked closed form for $d(4)=2$, $d(n+1)=d(n)+n-1$?