Joe Z.
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 13h asked How do you solve this circular system of equations in $\mathbb{Z}_2$? Apr13 awarded Popular Question Apr12 awarded Nice Question Apr12 reviewed Approve What is the next perfect square of the form 14444… in decimal notation? Apr12 accepted What is the next perfect square of the form 14444… in decimal notation? Apr12 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. Apr12 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. Apr12 revised What is the next perfect square of the form 14444… in decimal notation? added 4 characters in body Apr12 comment What is the next perfect square of the form 14444… in decimal notation? Oh, yes, I suppose I did. Apr12 asked What is the next perfect square of the form 14444… in decimal notation? Apr3 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. Mar21 comment Partial derivative with respect to $y$ of $(y/x)$? For $\Delta$, use capital D in the $\LaTeX$ symbol "delta". Feb24 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. Feb9 awarded Notable Question Feb9 awarded Yearling Jan30 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? Dec19 awarded Popular Question Dec16 awarded Caucus Dec1 awarded Famous Question Nov29 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.