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Oct
17
comment The sum of powers of two
@Milly 9 has to be a power of 2. namely for that set it doesn't exist. You would need like {8, 4, 4, 2, 1} and then k = 4 (2^4=16). I guess set was the wrong word. It can have duplicates. What do you call a set that can have duplicates?
Oct
17
comment The sum of powers of two
@Milly What's m?
Oct
17
comment The sum of powers of two
@HagenvonEitzen How so? I'm more of a CS guy than math.
Oct
17
comment The sum of powers of two
ugh, a set I guess is the wrong thing to say. It can(must actually) have duplicates
Oct
17
revised The sum of powers of two
added 26 characters in body
Oct
17
comment The sum of powers of two
@Milly fixed, missed $2^k$
Oct
17
asked The sum of powers of two
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.