## Search found 59 matches

Tue Oct 04, 2016 5:24 pm UTC
Forum: Logic Puzzles
Topic: Pirate's Dilemna
Replies: 9
Views: 4366

### Re: Pirate's Dilemna

At 4 pirates. Well with tie breaker it only takes 2 to win. The least senior one knows he will get one if this fails so 2 coins should suffice. 98 coins for the scond most senior one. 0 for the two in the middle. In the 4-pirate case it is cheaper to buy the vote of the 2nd lowest pirate with 1gold...
Wed Aug 24, 2016 10:25 pm UTC
Forum: Language/Linguistics
Topic: Annoying words, and Words You Hate
Replies: 1951
Views: 390612

### Re: Annoying words, and Words You Hate

Maybe this has been around for a while, but I seem to have run into it a lot more just this year than I have previously: phrases like "This needs fixed" that lack "to be" before the past-tense transitive verb. I want to apply a lot of fixed to this usage so that it will have fixe...
Wed Aug 10, 2016 10:00 pm UTC
Forum: Mathematics
Topic: Counting Zeros
Replies: 4
Views: 2805

### Re: Counting Zeros

UPDATE: As chridd pointed out, the function only cares about the (order-independent) list of exponents in the parameter's prime factored form. For a given number of prime factors, each form corresponds to a partition of that number. Here I've enumerated the possible combinations up to 6 prime factor...
Fri Aug 05, 2016 10:22 pm UTC
Forum: Mathematics
Topic: Counting Zeros
Replies: 4
Views: 2805

### Counting Zeros

Consider the sequence 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4... ( https://oeis.org/A007814 ). The value at every odd position is zero. The value at every even position is one more than the value at half of that position. The value at general position n can be found by counting the trailing zeros of the bin...
Sun Jul 10, 2016 6:46 pm UTC
Forum: Language/Linguistics
Topic: My wife and I's...
Replies: 30
Views: 6914

### Re: My wife and I's...

"Me and my wife's kids went to the movies yesterday." This seems odd to me only because of the "me...went" construction. I guess I might suspect an intended meaning of "the kids that are both mine and my wife's", but in that case, I would expect just "my kids"...
Thu Jul 07, 2016 1:06 am UTC
Forum: Language/Linguistics
Topic: My wife and I's...
Replies: 30
Views: 6914

### Re: My wife and I's...

Zohar wrote:I think most people would say "My wife's kids and I", wouldn't they?

Only (ideally) if the group was functioning as the subject rather than the object of the sentence.
Mon Jun 27, 2016 10:41 pm UTC
Forum: Language/Linguistics
Topic: What do you think about Truespel and Fanetik?
Replies: 10
Views: 3545

### Re: What do you think about Truespel and Fanetik?

Mega85 wrote:Truespel respells "-ing" words as "-eeng"... "sing" becomes "seeng".

How would one spell the present participle of "see"? "Seeeeng"?!
Mon Jun 27, 2016 10:36 pm UTC
Forum: Language/Linguistics
Topic: Miscellaneous language questions
Replies: 549
Views: 63894

### Re: We are in five.

I first interpreted it as relating to musical time signatures (i.e. five-four or five-eight time). Perhaps the statement could have been made one of a group of musicians.
Tue Jun 14, 2016 9:49 pm UTC
Forum: Language/Linguistics
Topic: My wife and I's...
Replies: 30
Views: 6914

### Re: My wife and I's...

Ultimately, though, the favourite book of the grouped pairing of both myself and the wife of myself seems a difficult phrasing to accomplish, especially if gentility insists on placing one's better half to the fore in such an exposition. My relative's and your's (!) expertise in such matters may no...
Wed Jun 01, 2016 10:23 pm UTC
Topic: 1688: Map Age Guide
Replies: 70
Views: 11491

### Re: 1688: Map Age Guide

cct wrote:The initials "TMR" are slowly moving across this map toward my location.

Oddly enough, the same initials also appear at my location and move as I do.
Fri May 27, 2016 11:01 pm UTC
Forum: Mathematics
Topic: Find the number to divide with another one to obtain zero remainder.
Replies: 7
Views: 2586

### Re: Find the number to divide with another one to obtain zero remainder.

Sableagle wrote:So that's that. 297 is exactly divisible by 3 and 11.

29.7 is exactly divisible by 0.3 and 1.1, if that helps.

297 is also divisible by 9, 27, 33 and 99
so 29.7 is divisible by 0.3, 0.9, 1.1, 2.7, 3.3 and 9.9.
Fri Mar 11, 2016 3:51 am UTC
Forum: Mathematics
Topic: does every unit length curve lie inside the semicircle?
Replies: 12
Views: 3310

### Re: does every unit length curve lie inside the semicircle?

I don't know how to prove it, but fitting a curve in a convex object is the same as fitting the curve's convex hull. Something with the curve containing all extrema already and the hull not adding to that. I was thinking along the same lines. If we define the "bounding box" of a curve as ...
Wed Dec 30, 2015 11:50 pm UTC
Forum: Logic Puzzles
Topic: Probability of ending up in room N
Replies: 3
Views: 2007

### Re: Probability of ending up in room N

Not really. You also have an infinite number of rounds to play, and each round has a non-zero chance of success. While it is theoretically possible to lose an infinite number of times, the probability of that happening is zero. You are almost surely going to win some round. What about this scenario...
Tue Dec 01, 2015 3:53 am UTC
Forum: Mathematics
Topic: Describe an Inconsistent System.
Replies: 44
Views: 7369

### Re: Describe an inconsistent system

When System A emulates System B, the emulation of System B is wholly contained within System A. The logical separation that your refer to is not absolute. Two systems might be entirely distinct - until we use one system to describe (emulate/simulate) another system. Such emulation is only possible ...
Thu Oct 22, 2015 2:07 am UTC
Forum: Mathematics
Topic: Favorite Fractals?
Replies: 7
Views: 2869

### Re: Favorite Fractals?

I personally like the Koch Snowflake and the Thue-Morse Sequence. I think my favorite though is the Conway Triangle fractal.

Related, a Fractal Program I made for drawing them.

Spoiler:
Tue Sep 29, 2015 10:56 pm UTC
Forum: Logic Puzzles
Topic: Kings on a Chessboard
Replies: 6
Views: 2974

### Re: Kings on a Chessboard

This seems remarkably similar to Tron, except with alternating discrete movement.
Thu Sep 24, 2015 12:09 am UTC
Topic: Fractal Program
Replies: 2
Views: 6828

### Re: Fractal Program

Thanks for letting me know; I've edited the original post to include an updated link.
Thu Sep 17, 2015 11:37 pm UTC
Forum: Logic Puzzles
Topic: Anti-Gambler's Fallacy
Replies: 162
Views: 22381

### Re: Anti-Gambler's Fallacy

This problem seems to be related to Stopped Brownian Motion . Even assuming I am convinced at all times of the validity of the coin's bias, if no sequence of results would convince me to quit, eventually I will reach the only stable state of the system. Therefore, as a logical player I must choose s...
Sun Sep 06, 2015 2:52 pm UTC
Topic: 1572: "xkcd Survey"
Replies: 366
Views: 102379

### Re: 1572: "xkcd Survey"

Just for fun, I made up a sentence with the 20 most common misspelled English words in it, then mangled it: Alawt uv ontrepprenewers deffinnitley immpploy enn unesesairy, unaxeptoble beeruocrisy, partikulerly inn okurannses whare imbearessmint oar conchince lickwifye oar souperseed konsensis onn pa...
Mon Jul 27, 2015 10:34 pm UTC
Topic: 1556: "The Sky"
Replies: 53
Views: 12637

### Re: 1556: "The Sky"

Hmmmm. I think I get you, but in my head, the light source here (gigantic ball of explosion far older than life on this planet, not shown) is somewhere low off to the left, and the glow on the upper parts of the lower clouds should also be balanced that way somewhat. An alternative is that the lowe...
Thu Jul 09, 2015 6:11 pm UTC
Topic: 1547: "Solar System Questions"
Replies: 98
Views: 16618

### Re: 1547: "Solar System Questions"

If the black questions are from Randall, and the red answers are in different handwriting... who filled in the few answers we have? I assumed that meant he had compiled the list of questions some time in the past, and has been filling in answers to his own questions as he learns more about the subj...
Mon Jul 06, 2015 3:52 pm UTC
Forum: Language/Linguistics
Topic: Annoying words, and Words You Hate
Replies: 1951
Views: 390612

### Re: Annoying words, and Words You Hate

1. Using "different... than" instead of "different... from" (it's especially obvious which way it should be if you replace "different" with "differing") Do you mean in general or just in cases where the correct form is "from"? Because I can't imagin...
Sun Jul 05, 2015 7:25 pm UTC
Forum: Language/Linguistics
Topic: Annoying words, and Words You Hate
Replies: 1951
Views: 390612

### Re: Annoying words, and Words You Hate

Not exactly annoying words, but annoying usage, here are a couple of pet peeves of mine: 1. Using "different... than" instead of "different... from" (it's especially obvious which way it should be if you replace "different" with "differing") 2. Using "les...
Fri Jul 03, 2015 2:43 pm UTC
Forum: Science
Topic: Name for speed at which tropospheric bubbles occur?
Replies: 15
Views: 3100

### Re: Name for speed at which tropospheric bubbles occur?

I think cavitation is only important/relevent in water (and other liquids) because they are incompressible, and thus the bubbles cause significant shocks when they implode.
Thu Jul 02, 2015 11:23 pm UTC
Forum: Mathematics
Topic: Probability of finding a random number
Replies: 2
Views: 1530

### Re: Probability of finding a random number

Assuming the range contains only all the integers from 0 to some maximum N - 1 inclusive. Question 1: The probability the at least one other player selects the same first number as X is the inverse of the probability that none of the other players do. Thus, P(at least one match) = 1 - P(no matches) ...
Thu Jul 02, 2015 10:54 pm UTC
Forum: Logic Puzzles
Topic: July 3rd, 2015 New York Times Puzzle
Replies: 14
Views: 5047

### Re: July 3rd, 2015 New York Times Puzzle

I solved it after this sequence of guesses: 1, 1, 1 No. 0, 0, 0 No. 0, 1, 2 Yes! 0, 9, 23 Yes! 87, 1, -4 No. 88, 89, 83 No. 0, 1, 3 Yes! 0, 1, 4 Yes! 0, 1, 25 Yes! 25, 26, 12 No. 2, 1, 0 No. 2, 0, 1 No. 89, 223, 2945 Yes!
Fri Jun 12, 2015 2:38 pm UTC
Forum: Mathematics
Topic: Game with Chairs (and possible ties to economic mobility)
Replies: 5
Views: 2029

### Re: Game with Chairs (and possible ties to economic mobility

Firstly, am I correct in understanding that V(j) produces only integer values in [1,N] and that every value is used exactly once, so that there are N! possible ways of defining V(j)? Secondly, as far as individual strategy for simulation, it seems that the naive strategy of always moving to the high...
Sat Jun 06, 2015 5:11 pm UTC
Forum: Science
Topic: A statics problem
Replies: 6
Views: 1834

### Re: A statics problem

Yeah, I know that these equations should add up to zero, but my trouble is finding how much normal force is applied to the beam at A and C Start by setting up the two equations: What are the forces in the vertical direction? There is the weight of the beam pulling down, and the two normals pushing ...
Sat Jun 06, 2015 5:01 pm UTC
Forum: Mathematics
Topic: Stubborn bettor
Replies: 99
Views: 10274

### Re: Stubborn bettor

You mean this? You say you understand expected value. Okay. Prove it. Let's say I roll a single 6-sided die. If the result is: 1: You give me \$6. 2: I give you \$24. 3: You give me \$15. 4: You give me \$75. 5: I give you \$3. 6: I give you \$9. What is the expected value of your winnings (or lo...
Sat Jun 06, 2015 1:39 pm UTC
Forum: Science
Topic: A statics problem
Replies: 6
Views: 1834

### Re: A statics problem

There are two unknowns in the problem (the reactions at A and B), so you'll need two independent equations to solve. The first will be application of Newton's 2nd law to the linear motion of the beam: sum of forces equals mass times acceleration (which is zero). The second equation will again be fro...
Tue Jun 02, 2015 2:55 pm UTC
Forum: Mathematics
Topic: Combinations algorithm and property
Replies: 19
Views: 2903

### Re: Combinations algorithm and property

1-2-3-4-6
1-2-3-6-7

Does the algorithm have to produce all the possible combinations in sorted (assuming numeric low-high) order? If so, shouldn't 1-2-3-5-6 or 1-2-3-4-7 be the third result? Otherwise, how many k-uplets are required?
Mon Jun 01, 2015 7:15 pm UTC
Forum: Language/Linguistics
Topic: A (annoying) habit
Replies: 5
Views: 3077

### Re: A (annoying) habit

mathmannix wrote:Of course, for this particular example, you could just take the route of following an historical precedent. An habit. There you go.

*twitch*
Mon Jun 01, 2015 2:08 pm UTC
Replies: 352
Views: 188394

These are some of my older ones--I haven't had a camera around recently. Your links aren't working. First and foremost, I don't think the IMG tags work unless your URL contains a image filetype (i.e. .jpg, .png, .gif, etc.). Second, I'm getting a 403 error when I try to open the link in a new tab. ...
Sun May 31, 2015 1:26 pm UTC
Forum: Language/Linguistics
Topic: A (annoying) habit
Replies: 5
Views: 3077

### Re: A (annoying) habit

In both of your examples, I would agree that the choice of indefinite article should be based on the word in parentheses. In both cases, the parenthetical is an adjective that connects directly to the rest of the sentence rather than a standalone phrase.

Sun May 31, 2015 1:09 pm UTC
Forum: Mathematics
Topic: Stubborn bettor
Replies: 99
Views: 10274

### Re: Stubborn bettor

Anyway I will try this stubborn strategy starting with 500 dollars as capital to see if it is interesting. Be prepared to be very stubborn. The average number of rounds is about 90, but about 5% of games reach 500 rounds or more. http://drive.google.com/uc?export=view&id=0Bw3foanAqXdpbGZybTV1YW...
Sat May 30, 2015 9:51 pm UTC
Forum: Mathematics
Topic: Stubborn bettor
Replies: 99
Views: 10274

### Re: Stubborn bettor

PeteP wrote:Lesson learned even a very tiny amount of skew in your random numbers can fuck with your simulations.

Good to know!
Sat May 30, 2015 8:22 pm UTC
Forum: Mathematics
Topic: Stubborn bettor
Replies: 99
Views: 10274

### Re: Stubborn bettor

Anyway I will try this stubborn strategy starting with 500 dollars as capital to see if it is interesting. Be prepared to be very stubborn. The average number of rounds is about 90, but about 5% of games reach 500 rounds or more. http://drive.google.com/uc?export=view&id=0Bw3foanAqXdpbGZybTV1YW...
Sat May 30, 2015 4:51 pm UTC
Forum: Mathematics
Topic: Stubborn bettor
Replies: 99
Views: 10274

### Re: Stubborn bettor

The number of trials isn't the number of tosses. Measure determines the result by playing 10000000 times until success or failure is reached. Btw mind posting your whole code, measure? I got 980004/19996 w/l ratio for 490 and only 977911 for 439. Sure thing: #include "stdafx.h" #include <...
Sat May 30, 2015 1:48 pm UTC
Forum: Mathematics
Topic: Stubborn bettor
Replies: 99
Views: 10274

### Re: Stubborn bettor

Okay, as I understand it, the "stubborn strategy" uses this basic algorithm: if(net_profit >= goal) Success; if(won_last_time) { Bet(Min(goal - net_profit, net_profit_last_round - net_profit)); // bet twice as much as last time unless close to goal } else // lost last time or first round {...
Fri May 29, 2015 7:23 pm UTC
Forum: Mathematics
Topic: Stubborn bettor
Replies: 99
Views: 10274

### Re: Stubborn bettor

He can not bet more than one dollar. So doubling the bet is not allowed. My mistake. I took "can you help him" to mean "can you improve his strategy". So to be clear, after entering the game with capital C and goal G, does his bet differ from 1 dollar: A.) only if he currently h...