Abu Yahya's definitions
(MATHEMATICS) each positive number has another number that, when multiplied times itself, equals that number. So, for example, 4 has a square root of 2 (2 x 2 = 4).
The square root of a negative number is an imaginary number. Imaginary numbers are not, by themselves, useful solutions to math problems; but they can be used to find them.
The square root of a negative number is an imaginary number. Imaginary numbers are not, by themselves, useful solutions to math problems; but they can be used to find them.
BILL: Anna, we have a rectangle that's 3 x as long as it is wide, and it encloses an area of 300 square meters. What are the dimensions?
ANNA: Well, that's like 3 squares of 100 square meters. The square root of 100 is 10, so the rectangle is 10 by 30.
_________________________________________
The logarithm of a square root is one half the log of the number itself; hence, the natural log of 25 is 3.2189, while the natural log of 5 is 1.6094.
ANNA: Well, that's like 3 squares of 100 square meters. The square root of 100 is 10, so the rectangle is 10 by 30.
_________________________________________
The logarithm of a square root is one half the log of the number itself; hence, the natural log of 25 is 3.2189, while the natural log of 5 is 1.6094.
by Abu Yahya April 23, 2010
Get the square rootmug. New York Stock Exchange. The US-half of NYSE Euronext.
NYSE has been a publicly traded company since 2005; at the time of its initial public offering, it merged with Euronext and ArcaEX.
While average daily trading volume on the NYSE is typically between 3 million and 7 million shares, only about 40% of this actually trades in the iconic Wall Street building. The rest trades remotely in regional exchanges.
NYSE has been a publicly traded company since 2005; at the time of its initial public offering, it merged with Euronext and ArcaEX.
While average daily trading volume on the NYSE is typically between 3 million and 7 million shares, only about 40% of this actually trades in the iconic Wall Street building. The rest trades remotely in regional exchanges.
by Abu Yahya September 28, 2010
Get the NYSEmug. (ECONOMICS) method of transferring wealth from a buyer to a seller, usually over long distances and under different currency systems. Requires the buyer to have an account with a banker in the other city; the buyer sends a note ordering his banker to credit the seller's account by the amount being paid.
Bills of exchange were adopted in 13th century Italy; almost as soon as they became common, traders began to use them as a speculative instrument (discounting bad ones and reselling them) or else as a sleazy method of borrowing money (by "drawing and redrawing," i.e., where two merchants in different towns agree to exchange bills of exchange with each other). "Drawing and redrawing" is analogous to the method used by college students on the 1980's of writing checks to each other every couple of days and depositing them in ATM's so their checking accounts wouldn't bounce.
Bills of exchange were adopted in 13th century Italy; almost as soon as they became common, traders began to use them as a speculative instrument (discounting bad ones and reselling them) or else as a sleazy method of borrowing money (by "drawing and redrawing," i.e., where two merchants in different towns agree to exchange bills of exchange with each other). "Drawing and redrawing" is analogous to the method used by college students on the 1980's of writing checks to each other every couple of days and depositing them in ATM's so their checking accounts wouldn't bounce.
A bill of exchange is a type of "negotiable instrument" (contractual form of money).
A modern form of bill would be a check.
A modern form of bill would be a check.
by Abu Yahya September 7, 2010
Get the bill of exchangemug. In order of population, the Lusophonic countries are Brazil, Mozambique, Angola, Portugal, Guinea-Bissau, Timor-Leste, Macau S.A.R., and São Tomé e Príncipe.
by Abu Yahya May 18, 2010
Get the Lusophonicmug. Latin, "where is the benefit?" A type of logical fallacy in which one claims one didn't do something bad because it was not in one's interests to do so. An example would be, "Why would I steal from the cash register? It's going to hurt the business if I do, and then I might lose my job."
The argument is usually used on behalf of someone else: for example, Ludo Martens (1995) argues that Stalin could not possibly have massacred millions of Russians because he needed them to fight WW2; Fogel & Engermann claimed* that American slavery was not very bad because it was in the best interests of slaveowners to have content slaves.
The argument is a fallacy because it assumes that all relevant motives of the actor are well-established, and lead away from the act. It does not account for motives like personal hatred, shame, fear, spite, ideology, and so on.
________________________
* In *Time on the Cross* (1971); the book was conclusively debunked by David & Stampp, *Reckoning with Slavery* (1976).
The argument is usually used on behalf of someone else: for example, Ludo Martens (1995) argues that Stalin could not possibly have massacred millions of Russians because he needed them to fight WW2; Fogel & Engermann claimed* that American slavery was not very bad because it was in the best interests of slaveowners to have content slaves.
The argument is a fallacy because it assumes that all relevant motives of the actor are well-established, and lead away from the act. It does not account for motives like personal hatred, shame, fear, spite, ideology, and so on.
________________________
* In *Time on the Cross* (1971); the book was conclusively debunked by David & Stampp, *Reckoning with Slavery* (1976).
One frequently encounters *quis est beneficium?* arguments among Holocaust deniers of all stripes. Among such worthies it is claimed that Hitler/Stalin/Enver Pasha could not possibly have wanted to massacre all those millions because it was a nuisance to try.
by Abu Yahya February 14, 2009
Get the quis est beneficiummug. (HISTORY OF IRAN) More accurately known as Reza Shah; founder of the Pahlavi Dynasty (1925-1979), shah (emperor) of Iran from 1925 to his ouster in 1942 (by invading British and Russian armies).
Born, 1878; died, 1944. Originally in the regular Iranian Army, when the Iranian monarchy was bankrupted he contracted out to command a cossack division for the Anglo Persian Oil Company (British Petroleum). As a result, he actually had a lot of money and was able to become the prime minister (1922), and then depose the old Dynasty, the Qejars.
As Shah, he promised to revise the hated concession to Anglo Iranian Oil Company, but they managed to stall and thwart him with the help of the International Court of Justice. As a result, he turned to the Axis Powers. When World War II broke out, he offered some help to the Germans and Italians, so the British invaded and replaced him with his son, Shah Muhammad Reza.
Born, 1878; died, 1944. Originally in the regular Iranian Army, when the Iranian monarchy was bankrupted he contracted out to command a cossack division for the Anglo Persian Oil Company (British Petroleum). As a result, he actually had a lot of money and was able to become the prime minister (1922), and then depose the old Dynasty, the Qejars.
As Shah, he promised to revise the hated concession to Anglo Iranian Oil Company, but they managed to stall and thwart him with the help of the International Court of Justice. As a result, he turned to the Axis Powers. When World War II broke out, he offered some help to the Germans and Italians, so the British invaded and replaced him with his son, Shah Muhammad Reza.
Shah Reza Pahlavi is often compared with Ataturk, a contemporaneous dictator of Turkey. However, Reza Shah was much more reliant on a cooperative clergy than Ataturk was.
by Abu Yahya July 17, 2010
Get the Shah Rezamug. phenomenon in which greater input of effort, money, etc. yields smaller results. Crucial part of the idea is that if you're using x to get y results (where y is the thing you want). then additional input a will yield additional results b, but not in the same proportion as before.
On average, before, you put in x to get y, so your yield was y/x. But if you increase x by amount a, then your results will be y + b, where
(y + b)/(x + a) < y/x
and this will only get worse.
Diminishing marginal returns (DMR) is used to explain why the supply curve in economics slopes upward, i.e., increasing the quantity supplied requires an increased price of most things.
Sometimes DMR is more than offset by "economies of scale," which allows more of a thing to be supplied more cheaply than a small amount.
On average, before, you put in x to get y, so your yield was y/x. But if you increase x by amount a, then your results will be y + b, where
(y + b)/(x + a) < y/x
and this will only get worse.
Diminishing marginal returns (DMR) is used to explain why the supply curve in economics slopes upward, i.e., increasing the quantity supplied requires an increased price of most things.
Sometimes DMR is more than offset by "economies of scale," which allows more of a thing to be supplied more cheaply than a small amount.
At first his flowers and treats swept her off her feet, but then he had to do more and more lavish things to please her. It was a classic case of diminishing marginal returns.
by Abu Yahya June 3, 2009
Get the diminishing marginal returnsmug.