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by Traden4Alpha
October 9th, 2006, 12:34 pm
Forum: General Forum
Topic: question on spot oil prices and whether investors affect it
Replies: 49
Views: 95175

question on spot oil prices and whether investors affect it

<t>QuoteOriginally posted by: rbhawcroftnormally when prices go up demand goes down.... anyway who is hedging price risk? refiners dont.My understanding is that oil consumption is relatively in-elastic. People don't stop driving gas-guzzling cars the day the price spikes -- it takes months and years...
by Traden4Alpha
October 9th, 2006, 12:16 pm
Forum: Off Topic
Topic: Al Gore and his Predictions for the Netherlands
Replies: 35
Views: 92681

Al Gore and his Predictions for the Netherlands

<t>I wonder when it will be time to go long on cement and earth-moving equipment makers. A 5m x umpteen thousand km levee (around all the developed countries) is going to take a lot to build.The good news is that if Greenland and Antarctica become ice-free, then maybe we can find more oil there. </t>
by Traden4Alpha
October 8th, 2006, 12:08 am
Forum: Off Topic
Topic: Is Communism a barrier to free markets ?
Replies: 22
Views: 92246

Is Communism a barrier to free markets ?

<t>I suspect many would argue that China isn't a communist country anymore as evidenced by the rise of free markets and independent businesses. A free market is the antithesis of the old centrally-planned communist model. The communist party (and the proletariat) own a rapidly decreasing fraction of...
by Traden4Alpha
October 7th, 2006, 10:27 pm
Forum: Off Topic
Topic: Al Gore and his Predictions for the Netherlands
Replies: 35
Views: 92681

Al Gore and his Predictions for the Netherlands

<t>I found Gore's "Inconvenient Truth" to carry a convenient assumption that halting the growth rate of CO2 emissions will prevent his movie's nightmare scenario. The inexorable effects of the ocean's thermal mass and climate mean a seriously delayed reaction to anything we do. Getting back to 1990-...
by Traden4Alpha
October 7th, 2006, 12:36 pm
Forum: Programming and Software Forum
Topic: What is a very large matrix in MATLAB?
Replies: 19
Views: 98462

What is a very large matrix in MATLAB?

<t>QuoteOriginally posted by: DiscoduroThe matrix is created instantly - 500 MB allocated and 1GB of available RAM left. The real challenge will come when you do anything with that matrix. This will create multiple copies of the data both in matlab temporary memory (intermediate values in an express...
by Traden4Alpha
October 6th, 2006, 9:48 pm
Forum: General Forum
Topic: question on spot oil prices and whether investors affect it
Replies: 49
Views: 95175

question on spot oil prices and whether investors affect it

<t>The interesting question is whether speculators distort the price of a commodity. Some amount of speculation is very good in the commodities markets because it creates liquidity and helps bridge the sparser trades between producers and consumers. Speculators can be market makers. Yet the greater ...
by Traden4Alpha
October 6th, 2006, 6:10 pm
Forum: Brainteaser Forum
Topic: A Failing of Set Theory
Replies: 5
Views: 91594

A Failing of Set Theory

<t>The notion of an equivalent axiomatization made me wonder whether you could declare that "obviously true" statement as the axiom and then prove that other statements that are the traditional axioms of set theory are actually theorems derived from this statement. I would argue that a given axiomat...
by Traden4Alpha
October 6th, 2006, 1:17 pm
Forum: Programming and Software Forum
Topic: What is a very large matrix in MATLAB?
Replies: 19
Views: 98462

What is a very large matrix in MATLAB?

You might try it yourself. Synthesize a random matrix of some large size and try working with it. Increase the size and repeat. The in-RAM constraint is where things get ugly. 25 million elements is about 200 MB per copy of the matrix if the elements are doubles.
by Traden4Alpha
October 5th, 2006, 9:23 pm
Forum: General Forum
Topic: question on spot oil prices and whether investors affect it
Replies: 49
Views: 95175

question on spot oil prices and whether investors affect it

<t>Speculators can unwind their positions prior to the contract's settlement date to avoid taking/making delivery of the commodity. Investors can roll their positions into subsequent periods for as long as they like to capture the gain from a steadily increasing price of the commodity. Once the upwa...
by Traden4Alpha
October 5th, 2006, 9:04 pm
Forum: General Forum
Topic: what is your lifestyle if you have $30 million in the bank?
Replies: 129
Views: 97575

what is your lifestyle if you have $30 million in the bank?

<t>QuoteOriginally posted by: CactusManQuoteOriginally posted by: Traden4AlphaNow if one follows the example outlined by CactusMan, then one could afford all manner of supposed luxuries for a short and presumably glorious time.Which example? The guy who had $20,000,000 and has lost almost all of it ...
by Traden4Alpha
October 5th, 2006, 8:24 pm
Forum: General Forum
Topic: what is your lifestyle if you have $30 million in the bank?
Replies: 129
Views: 97575

what is your lifestyle if you have $30 million in the bank?

<t>QuoteOriginally posted by: KackToodlesQuoteOriginally posted by: Traden4AlphaNow I have to add more items to the list: supermodels, ...., start software firm, ... 5) wee helicopter 6) neighbors house, demolition, and helicopter pad construction You folks have serious misconceptions of how much $3...
by Traden4Alpha
October 5th, 2006, 7:07 pm
Forum: Brainteaser Forum
Topic: Card Shuffling
Replies: 6
Views: 91712

Card Shuffling

<t>QuoteOriginally posted by: mhughesReally, this isn't too applicable when shuffling cards because of the difficulty in perfect shuffling (for one thing it requires perfect cutting of the deck). I came up with it when I was shuffling poker chips, and then it's much more interesting to see the patte...
by Traden4Alpha
October 5th, 2006, 3:38 pm
Forum: Brainteaser Forum
Topic: Card Shuffling
Replies: 6
Views: 91712

Card Shuffling

<t>1. The upper bound on m is n. The lower bound is m>log2(n+1) due to the doubling effect of the location of card 1 and the fact that the first possible return to original order takes place the first time the 1-card wraps in the shuffled deck.2. The first method of shuffling is equivalent to the se...
by Traden4Alpha
October 5th, 2006, 3:05 pm
Forum: Brainteaser Forum
Topic: Card Shuffling
Replies: 6
Views: 91712

Card Shuffling

<t>If you watch the "1" card, its new location is MOD(2^M, N+1), where M is the shuffle number and N is the number of cards in the deck. When MOD(2^M, N+1) = 1, then the deck is back in original order. The pattern of the critical value of M that returns an N-card deck is strange: {2, 4, 3, 6, 10, 12...
by Traden4Alpha
October 5th, 2006, 2:11 pm
Forum: General Forum
Topic: what is your lifestyle if you have $30 million in the bank?
Replies: 129
Views: 97575

what is your lifestyle if you have $30 million in the bank?

<t>QuoteOriginally posted by: CuchulainnA wee helicoptor + launch pad on your doorstep is an alternative to #1. Then you can shuttle to the airport.I'd love a wee helicopter, but city zoning laws/noise ordinances might take a dim view of it. On the other hand, the house across the street isn't in th...