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  • 22 votes cast
Jun
13
awarded  Yearling
Mar
28
awarded  Popular Question
Oct
9
comment How to $\int e^{-x^2} dx$
I was about to type this solution using Taylor series, good job @Leucippus :)
Sep
24
awarded  Autobiographer
Sep
23
awarded  Notable Question
Sep
22
accepted Combinatorics Problem?
Sep
22
asked How to calculate the number of ways of partitioning n identical objects into r different groups such that each group has same number of objects?
Jul
21
comment Combination with repetition problem
This should be the approach that must be followed :)
Jul
16
comment How many squares can be formed from n equidistant points in a circle?
so I guess my answer is correct for n=8?
Jul
16
revised How many squares can be formed from n equidistant points in a circle?
added 90 characters in body
Jul
16
awarded  Critic
Jul
16
comment How many squares can be formed from n equidistant points in a circle?
@talegari: yes for n=6 there are no squares possible my bad my mistake, but if n=8 then we have 2 squares, so does this rule hold in general like if n is a multiple of 4 then n/4 is the number of squares that can be formed?
Jul
16
revised How many squares can be formed from n equidistant points in a circle?
added 165 characters in body
Jul
16
comment How many squares can be formed from n equidistant points in a circle?
yes, they are uniformly space along the circumference of the circle
Jul
16
comment How many squares can be formed from n equidistant points in a circle?
sure lemme post a picture.
Jul
16
asked How many squares can be formed from n equidistant points in a circle?
Jul
16
accepted How do 3 points define a plane?
Jul
16
comment How do 3 points define a plane?
Can you like give a non mathematical example to show why 4 points are a problem and 3 are not and for that matter is it a generalization that higher number of points pose problems to define a plane?
Jul
16
comment How do 3 points define a plane?
The answer to the combinatorics question is like C(25,3) which I am not able to see why, can't 4 points define a plane? if yes then the answer should be C(25,3) + C(25,4) isn't it?
Jul
16
asked How do 3 points define a plane?