Search found 21 matches

by khanofmongols
Wed Jan 05, 2011 4:31 am UTC
Forum: Mathematics
Topic: Comprehensive Exam Help
Replies: 36
Views: 3332

Re: Comprehensive Exam Help

I would think that you could use taylor series for the first one.
by khanofmongols
Wed Nov 17, 2010 1:27 am UTC
Forum: Computer Science
Topic: problems using Fibonacci
Replies: 4
Views: 1720

Re: problems using Fibonacci

If you have n slots: __ __ __ __ __ __ __ __... Look at the first slot. There are two possibilities: cow or no cow. The number of possible configurations is the sum of these two configurations. If there is a cow then the number of subpossibilities is equal to the situation where you have n-2 slots b...
by khanofmongols
Wed Nov 17, 2010 12:29 am UTC
Forum: Serious Business
Topic: Open Source Legal System
Replies: 53
Views: 7915

Re: Open Source Legal System

Also, the more transparent we can make governing, the better things will be. Perhaps we should get existing politicians to craft bills available in Wiki form, viewable, but not editable, by the public? That is a very good point and hopefully it would shorten the bills. Social Security was only abou...
by khanofmongols
Sun Nov 14, 2010 10:10 am UTC
Forum: Mathematics
Topic: Statistics & Album Reviews
Replies: 6
Views: 1085

Re: Statistics & Album Reviews

Probably the simplest way to model the reviews would be to assign a weight to the average of all reviews as a sort of base and then average that with the mean of the reviews of the album weighted by the square root of the number of reviews. Something like: goodness of record=\frac{AverageAll Reviews...
by khanofmongols
Mon Sep 20, 2010 11:05 pm UTC
Forum: Science
Topic: Question on friction
Replies: 2
Views: 757

Re: Question on friction

The coefficient of friction isn't perfectly constant for all normal forces and velocities but is mostly constant. At higher normal forces the coefficient goes up because the uneven surfaces mesh more. Also at higher velocities the coefficient of friction decreases because the surfaces "skip&quo...
by khanofmongols
Tue Sep 14, 2010 9:55 pm UTC
Forum: Mathematics
Topic: Rigorous method of redistricting?
Replies: 3
Views: 1915

Rigorous method of redistricting?

I guess math is the best place to put this (feel free to move): Gerrymandering, the process of redrawing districts to favor incumbents or political parties, is a problem. One way to fix this would be to implement some sort of redistricting algorithm that generates reasonable districts given the cens...
by khanofmongols
Sat Jul 24, 2010 1:36 am UTC
Forum: Science
Topic: Knowledge from group averages
Replies: 25
Views: 3531

Re: Knowledge from group averages

Wouldn't it have been better to use a logarithmic sort of bining? Less bias towards larger numbers?
by khanofmongols
Mon Jun 07, 2010 5:11 pm UTC
Forum: Mathematics
Topic: Probability Question
Replies: 14
Views: 2712

Re: Probability Question

She is making the mistake of looking for a pattern then determining if it is likely or not. Almost any set of data will have a pattern that is very rare because of the large number of random patterns possible. In other words, like others have posted, she will find something unusual or surprising but...
by khanofmongols
Wed Jun 02, 2010 4:44 am UTC
Forum: Serious Business
Topic: Is an openness to uncertainty necessary?
Replies: 21
Views: 2714

Re: Is an openness to uncertainty necessary?

It is foolish to have absolute faith in anything in general because then no amount of evidence will convince you otherwise. The logic of Baynesian inference is that you can update your beliefs based upon evidence. In updating one's beliefs one can use the formula: P(B|E)=\dfrac{P(E|B)...
by khanofmongols
Wed Jun 02, 2010 4:18 am UTC
Forum: Serious Business
Topic: A REAL Utopian System?
Replies: 41
Views: 6293

Re: A REAL Utopian System?

If a child is forced to choose between 2 cereals to have for breakfast every morning, and if he chooses outside of those 2 given choices he is beaten, obviously, the child is usually, if not always, going to choose of those two. Even then, he will probably have a preference so he'll likely choose j...
by khanofmongols
Tue May 25, 2010 3:40 am UTC
Forum: Science
Topic: Name your poison!
Replies: 94
Views: 11167

Re: Name your poison!

you could use a Pottassium Chloride injection which is what the US government uses. It stops the heart very quickly and is seemingly painless.
by khanofmongols
Tue May 18, 2010 2:29 am UTC
Forum: Mathematics
Topic: Multiple Integral Question
Replies: 3
Views: 888

Re: Multiple Integral Question

I would think that is because they aren't that unique. You just take the integral then evaluate whatever limits happen to be present due to the indefinite nature of the integral.
by khanofmongols
Sat May 15, 2010 12:43 am UTC
Forum: General
Topic: Useful or interesting units for measuring speed
Replies: 50
Views: 7892

Re: Useful or interesting units for measuring speed

I like (for impracticality):

Parsecs/Plank Times
or on the other extreme:
Plank Lengths/eon
by khanofmongols
Sun May 09, 2010 2:06 am UTC
Forum: Science
Topic: To what extent is my Archaeology professor on crack?
Replies: 14
Views: 2425

Re: To what extent is my Archaeology professor on crack?

There is some principle of quantum mechanics (or maybe it was relativity) that you can't have causality, simultaneity, and another thing. I wish I could remember it better, but most physicists throw out simultaneity cause the other two are really hard to part with. I believe what you are refering t...
by khanofmongols
Wed May 05, 2010 1:38 am UTC
Forum: Gaming
Topic: Civilization 5!!!
Replies: 481
Views: 116115

Civilization 5!!!

Ok I did a search and didn't see a thread on this so I thought I'd start one. It is supposed to be out September 1st, this year. New Features: Hexagonal Tiles, Only one unit per tile, and independent city states. What do you think of the changes? I personally think it would be awesome if someone mad...
by khanofmongols
Wed May 05, 2010 12:35 am UTC
Forum: School
Topic: Illinois Institute of Technology or Caltech?
Replies: 8
Views: 1648

Re: Illinois Institute of Technology or Caltech?

Ok well I made me decision and am going to IIT. I just really didn't want any debt.
by khanofmongols
Wed May 05, 2010 12:33 am UTC
Forum: School
Topic: 2010 AP tests discussion thread!
Replies: 96
Views: 10954

Re: 2010 AP tests discussion thread!

Schedule: Friday: European History: feel like I know everything only thing in question are the essays. Monday: Bio and both Physics C tests: ugh, don't know how I'll do on bio, I will do well on MC but hate their essay format. Mechanics will likely be a five, EM not so much. Thursday: Macroeconomics...
by khanofmongols
Tue Apr 27, 2010 11:05 pm UTC
Forum: School
Topic: Awesome Teacher Quotes
Replies: 1764
Views: 401159

Re: Awesome Teacher Quotes

This isn't an exact quote but my math teacher said of prom.

There is a spectrum between creating life and destroying it, make sure to stay in the middle
by khanofmongols
Mon Apr 26, 2010 1:45 am UTC
Forum: School
Topic: Illinois Institute of Technology or Caltech?
Replies: 8
Views: 1648

Illinois Institute of Technology or Caltech?

Ok I have to make a decision about where to go for undergrad.I'm likely going to major in engineering (undecided about anything more specifically). I'm also undecided about going to graduate school. I have eliminate my choices of the schools that I was accepted at down to Caltech and Illinois Instit...
by khanofmongols
Thu Apr 22, 2010 1:15 am UTC
Forum: Mathematics
Topic: Baynesian interpretation of confidence intervals?
Replies: 5
Views: 831

Re: Baynesian interpretation of confidence intervals?

sorry for the confusion the sample has a mean of 0 and the mean of the population is unknown.
by khanofmongols
Wed Apr 21, 2010 2:57 am UTC
Forum: Mathematics
Topic: Baynesian interpretation of confidence intervals?
Replies: 5
Views: 831

Baynesian interpretation of confidence intervals?

So lets say we have a sample of size 100 from a population with a known standard deviation of 10 with mean 0. We construct a 95% confidence interval with bounds (-1.960,1.960). A frequentist would interpret this as: "Were this procedure to be repeated on multiple samples, the calculated confide...

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