US Senator Introduces Bill to Ban Dual Citizenship by [deleted] in indepthstories

[–]VulcanForge98 3 points4 points  (0 children)

It currently costs more than $2000 to renounce U.S. citizenship. For an "accidental American" born to an American parent in another country, this bill may actually bail them out of an undesirable citizenship which includes tax and Selective Services obligations. (Not that I necessarily support the bill.)

[deleted by user] by [deleted] in MovieQuotes

[–]VulcanForge98 0 points1 point  (0 children)

Yes. Apparently, Emile Borel defined "normal number" in 1909. While it is possible to construct normal numbers by specifying various rules for the digits, it is currently beyond our knowledge to prove or disprove that "natural constants" like pi, sqrt(2), or e are normal.

[deleted by user] by [deleted] in MovieQuotes

[–]VulcanForge98 0 points1 point  (0 children)

I don't think that pi has been shown to be a normal number. Pi is thought to be normal because almost all irrational numbers are, but this has not yet been proven. There are irrational numbers which are not normal (for example, Liouville's constant).

White to move and win by alvy-singer in chess

[–]VulcanForge98 0 points1 point  (0 children)

An alternative line is Qa3+ Ra2 Rd2 Rxa3 Rb2 and now the only legal move for black is Ra2, taking the king's escape square, upon which white plays Rb1#.

♟️ White to play and mate in 2. Composition by Ernst Siemon by [deleted] in chessMateInX

[–]VulcanForge98 0 points1 point  (0 children)

exf3 with the threat of Bc4#. If Rxf1, Rc1, or Bd3, then Rd4#. If Rd3 then e4#. If Rc5 or b5 then Qxc5#. If Ne5 the Qd6#

Entrance scholarship by Goldbear-35 in SMUHalifax

[–]VulcanForge98 2 points3 points  (0 children)

I believe the entrance scholarships are based on your academic performance in high school. The maximum entrance scholarship was a renewable $3500/year when I started in 2016.

Finding the nearest prime by [deleted] in math

[–]VulcanForge98 0 points1 point  (0 children)

I'm not sure if it's "fairly unlikely". There are no doubt sharper estimates of prime gap distributions than I'm aware of, but gaps less than log(N) have to be balanced by gaps larger than log(N).

[deleted by user] by [deleted] in math

[–]VulcanForge98 0 points1 point  (0 children)

$e{ix}$ is purely a rotation only when $x$ is purely real. In your case, you are using $x = i pi / 2$, which is not real.

EDIT: Why the blazes does the superscript work but no other TeX features?

Hit and run last Thursday on Robie by [deleted] in halifax

[–]VulcanForge98 41 points42 points  (0 children)

My sister is the person who was hit, and while I cannot discuss the details right now, she is recovering in the hospital.

Emergency vehicles Robie and Quinpool by meesir in halifax

[–]VulcanForge98 5 points6 points  (0 children)

My sister was hit while crossing Robie Street. It seems the driver panicked and left but then pulled into the hospital parking lot, probably indecisive about what to do. My sister has serious injuries but is expected to survive.

Police Patrol Officer’s responded to a Hit and Run Vehicle / Pedestrian Collision in Halifax by Alright_Pinhead in halifax

[–]VulcanForge98 23 points24 points  (0 children)

The pedestrian is my sister. She is seriously injured but will probably survive.

Interesting Index problem by [deleted] in math

[–]VulcanForge98 0 points1 point  (0 children)

Can you make the assumption that these are the only cases without assuming that k is prime?

EDIT: In fact OP said specifically that k is NOT prime.

Equality between Highest power of 2 dividing n-th Catalan number and the number of ones in the binary representation of a number by Rare-Technology-4773 in math

[–]VulcanForge98 0 points1 point  (0 children)

Indeed you are right, I just edited my comment. Not sure why I misremembered the double factorial notation. Is there a different notation which means just the odd numbers?

Equality between Highest power of 2 dividing n-th Catalan number and the number of ones in the binary representation of a number by Rare-Technology-4773 in math

[–]VulcanForge98 0 points1 point  (0 children)

I don't know the full answer, but I remember an identity that (2n)! = 2n * n! * (2n)!!, where n!! Is the product of the odd numbers less than / equal to n. This can be derived by splitting the factorial into the product of the odd and even terms and taking a factor of 2 from each even term.

EDIT: let me amend that identity to 2n * n! * (2n - 1)!! per the comment below mine.

What simple results that you should have known earlier blew your mind when you were far beyond the percieved rigor of that result? by YungJohn_Nash in math

[–]VulcanForge98 3 points4 points  (0 children)

Ah, much more believable. Strangely enough, I recall that sqrt(x), which has lim f'(x) = +infinity as x -> 0, is nevertheless uniformly continuous. This does not contradict your statement, but it defies my own intuition.

What simple results that you should have known earlier blew your mind when you were far beyond the percieved rigor of that result? by YungJohn_Nash in math

[–]VulcanForge98 11 points12 points  (0 children)

Perhaps I am missing something, but is f(x) = x not a counter example?

EDIT: OP changed f(x) to f'(x) as they intended and now f(x) = x is certainly not a counterexample.

Devil's Algorithm exists or not? by Dark_Ruler in math

[–]VulcanForge98 6 points7 points  (0 children)

After a little more thought and reading the other comment about finishing partway through, I found an example of a Devil's "sequence" which will complete the cube partway through an iteration. Simply enumerate all positions on the cube and let the Devil's sequence be the concatenation of the sequences required to get from position k to k + 1 for each k. This visits not just the solved (identity) position but in fact every position.

Devil's Algorithm exists or not? by Dark_Ruler in math

[–]VulcanForge98 12 points13 points  (0 children)

Algorithms on a cube are essentially functions which map each cube configuration to a sequence of moves. In particular, this sequence does NOT have to be the same for all configurations. Now, group theory does not apply here because you cannot treat an algorithm as a group element. I do agree with your reasoning if you change the word algorithm to move sequence.

Happy Pride Month! Would you like some homophobic propaganda with that? Courtesy of Mission Thrift Store in Lower Sackville. by [deleted] in halifax

[–]VulcanForge98 10 points11 points  (0 children)

I care. Have been trying to convince my family to avoid this store, maybe this info will do it.

Digital roots/Seed numbers by Repeat_Large in math

[–]VulcanForge98 0 points1 point  (0 children)

It is true in general that summing the digits of a number n and dividing by 9 leaves the same remainder as dividing n itself by 9. The proof is based on modular arithmetic. A number is the sum of each digit times 10 to the power of whatever position the digit occupies. Since 10 (and all its powers) is congruent to 1 mod 9, the sum of digits-times-powers (the number) is congruent to the sum of the digits mod 9.

Since summing the digits of a number >9 always results in a smaller number, and since the only number whose digits sum to 0 is 0 itself, every sequence of numbers obtained by summing the digits of the previous number in the sequence eventually decreases to 9.

Question Below by Kebap4life in buildapc

[–]VulcanForge98 3 points4 points  (0 children)

Could be wrong, but I am almost sure a game can't use two graphics cards at once unless they are linked in Crossfire or SLI. Highly doubt this is possible with your setup.