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awarded  Caucus
Oct
31
comment Are there periodic functions without a smallest period?
@PrzemysławScherwentke This appears to be the only continuous one, so it's certainly note-worthy! Although, I'm almost tempted to say that the period is 0 in this case.
Oct
31
comment Are there periodic functions without a smallest period?
I guess this is a consequence of the fact that there are irrationals(in fact infinitely many) between any 2 rationals?
Oct
24
awarded  Yearling
Aug
29
comment When does L' Hopital's rule fail?
This way, they think of L'Hopital's Rule as just another tool instead of magic. Except that L'Hopital's is pretty much sorcery. Just sorcery that sometimes fails :)
Aug
27
comment Can one deduce whether a given quantity is possible as the area of a triangle when supplied with the length of two of its sides?
and since $\sin \theta$ is continuous and $\sin 0 = 0$ ; all values between $0$ and $1$ are possible(intermediate value theorem)
Aug
26
comment What is the average of no numbers?
@BrianKnoblauch that depends on the language. Never 0, but Java you give null, javascript NaN is better
Aug
18
comment How far can one see over the ocean?
@JohannesD I guess an object on the precise polar opposite of you, could be as high as you want, and you still couldn't see it.
Aug
18
comment What algorithm is used by computers to calculate logarithms?
Both of your links are dead btw.
Aug
18
comment What algorithm is used by computers to calculate logarithms?
@KonradRudolph Wow, I never noticed they were anagrams of eachother!
Aug
13
comment Can a coin with an unknown bias be treated as fair?
@user2357112 Well, if the sd card is actually fair, then it still is fair after the first flip. But you can't determine fairness based on lack of knowledge anymore.
Aug
13
comment If a fair die is thrown three times, what is the probability that the sum of the faces is 9?
@SilverQuettier I think, unless otherwise specified, we assume 6-sided dice, as they're the most popular.
Aug
13
answered If a fair die is thrown three times, what is the probability that the sum of the faces is 9?
Aug
7
comment What is the maximum y-value of the following function?
I solved it after asking the question :). Did it using Aditya's answer, but keeping it general.
Aug
7
comment What is the maximum y-value of the following function?
Is there a name for this theorem? Maybe a proof? I've never seen this before.
Aug
7
comment Throwing dice twice, with unlike probability of occourence?
You can why this is wrong directly, if you consider the odds of rolling a $6$. $6/6$ surely can't be right.
Aug
1
comment Two dice thrown, one comes up 6
@Cthulhu Right, if the friends rules were: "If there rolls exactly 1 6, cover the other die. If there rolls 2 6's, then cover one arbitrarily" then the odds would in fact not be 1/6, it would actually be 1/36. These questions are of course all about what the rules were. This is what most people's issue with monty hall is as well. They don't understand that the rules that the host plays by, reveals information.
Jul
29
comment Why is it that if I count years from 2011 to 2014 as intervals I get 3 years, but if I count each year separately I get 4 years?
@FreeAsInBeer I was making a joke :)
Jul
29
comment Why is it that if I count years from 2011 to 2014 as intervals I get 3 years, but if I count each year separately I get 4 years?
@FreeAsInBeer I don't know about you, but I had my 1-year anniversary lunch on my first day.
Jul
25
comment Is this proof of the fundamental theorem of calculus correct?
@Semiclassical Are there are proofs for plausibility which we don't have proofs of truth for? Or better yet, that we have proofs to the contrary?