103 reputation
4
bio website claimid.com/louisr
location Your computer
age 33
visits member for 3 years, 6 months
seen Dec 28 '12 at 1:36

trying to learn and help others learn :)


Sep
24
comment Proof: If n is a perfect square, $\,n+2\,$ is NOT a perfect square
how to prove this one?
May
29
awarded  Commentator
May
29
comment Teenager solves Newton dynamics problem - where is the paper?
@Norbert care to explain?
Sep
8
comment What is your favorite application of the Pigeonhole Principle?
what does it have to do with the pigeonhole principle?
Sep
8
comment What is your favorite application of the Pigeonhole Principle?
I don't get it :(
Aug
22
comment Why is $22/7$ a better approximation for $\pi$ than $3.14$?
Can someone explain why @Paxinum answer is not correct?
Aug
22
comment Why is $22/7$ a better approximation for $\pi$ than $3.14$?
+1 for smartass answer
Jul
4
comment Why can ALL quadratic equations be solved by the quadratic formula?
@Mark Bennet. Why can't I divide by 2?
Feb
21
awarded  Editor
Feb
21
revised What is so special about negative numbers $m$, $\mathbb{Z}[\sqrt{m}]$?
link to explain PID (not everyone understand this)
Feb
21
suggested suggested edit on What is so special about negative numbers $m$, $\mathbb{Z}[\sqrt{m}]$?
Jan
18
comment How come the number $N!$ can terminate in exactly $1,2,3,4,$ or $6$ zeroes but never $5$ zeroes?
Question title should be edited imo
Jan
12
comment Given an infinite number of monkeys and an infinite amount of time, would one of them write Hamlet?
So no practical/meaningful number is larger than that?
Jan
12
comment Given an infinite number of monkeys and an infinite amount of time, would one of them write Hamlet?
"this is a very large number, but most numbers are larger" Is there any practical number larger than this? Number of atoms in the universe perhaps?
Jan
4
awarded  Autobiographer
Jan
4
awarded  Supporter
Jan
4
comment An example of a real-world map that is not 4-colourable?
Imperial Cities are not a single entity.