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Apr
13
awarded  Popular Question
Apr
12
awarded  Nice Question
Apr
12
reviewed Approve What is the next perfect square of the form 14444… in decimal notation?
Apr
12
accepted What is the next perfect square of the form 14444… in decimal notation?
Apr
12
comment What is the next perfect square of the form 14444… in decimal notation?
@ADG: Your code wouldn't detect a perfect square even if it existed, since it relies on a floating-point data type.
Apr
12
comment What is the next perfect square of the form 14444… in decimal notation?
@GerryMyerson: Hmm, that is true. I forgot to think about it that way.
Apr
12
revised What is the next perfect square of the form 14444… in decimal notation?
added 4 characters in body
Apr
12
comment What is the next perfect square of the form 14444… in decimal notation?
Oh, yes, I suppose I did.
Apr
12
asked What is the next perfect square of the form 14444… in decimal notation?
Apr
3
comment Unusual 5th grade problem, how to solve it
Yeah, I restructured my site a bit and the code disappeared. I'll put it up on pastebin or something.
Mar
21
comment Partial derivative with respect to $y$ of $(y/x)$?
For $\Delta$, use capital D in the $\LaTeX$ symbol "delta".
Feb
24
comment Can a disconnected set be simply connected?
So I had to take this course again the following term, and the professor teaching it that time gave us the same question, but this time the set that was not connected was indeed not simply connected either.
Feb
9
awarded  Notable Question
Feb
9
awarded  Yearling
Jan
30
comment What's a proof that the angles of a triangle add up to 180°?
Also, I think it'll be equal to $2\pi$ if the clsoed curve doesn't intersect itself?
Dec
19
awarded  Popular Question
Dec
16
awarded  Caucus
Dec
1
awarded  Famous Question
Nov
29
comment I can't grasp how these events are independent?
Reread my answer, and then answer the question: "Given that B has happened, is the probability of $A$ happening any different than the probability of $A$ happening in general?" If $B$ has happened, then we're no longer looking at the entire set $S$ to figure out whether $A$ has happened, only the 5 elements in $B$. So the probability becomes 2 out of 5, rather than 2 out of 10. You can't just compare raw set sizes; probability is always a ratio.
Nov
29
comment I can't grasp how these events are independent?
Probably because conditional probability isn't part of your intuition yet. It takes a bit of time to learn.