Y Combinator commonly refers to:

* Y Combinator, one of the most well-known fixed-point combinators in untyped lambda calculus

* " A Use of the Y Combinator in Ruby "

* " Y Combinator in Erlang "

* " The Y Combinator explained with JavaScript "

* " The Y Combinator ( Slight Return )" ( detailed derivation )

* " How to Reinvent The Y Combinator " ( animated slides )

Over the years since, he has written several essays describing features or goals of the language, and some internal projects at Y Combinator have been written in Arc, most notably the Hacker News web forum and news aggregator program.

* Y Combinator ( company ), a seed-stage startup funding firm

Y Combinator is an American seed accelerator, started in March 2005.

Y Combinator provides seed money, advice, and connections at two 3-month programs per year.

The dinners last for the duration of the three month program, but all founders have the lifelong ability to book office hours with the Y Combinator venture partners.

Compared to other startup funds, Y Combinator itself provides very little money ($ 14, 000 for startups with 1 founder, $ 17, 000 for startups with 2 founders, and $ 20, 000 for those with 3 or more ), though Yuri Milner and SV Angel offer every Y Combinator company a $ 150, 000 convertible note investment.

Wired has called Y Combinator a " boot camp for startups " and " the most prestigious program for budding digital entrepreneurs ".

The firm is named after a construct in the theory of functional programming called the " Y Combinator ".

Paul Graham has said that a good growth rate ( growth in revenue or number of active users ) during Y Combinator is 5-7 % a week, although in exceptional cases this number can be as high as 10 %.

From its inception to 2008, one program was held in each of the US cities of Cambridge, Massachusetts, and Mountain View, California ; in January 2009, Y Combinator announced that henceforth the Cambridge program would be closed and all future programs would take place in Silicon Valley.

In 2009, Y Combinator partnered with Sequoia Capital and angel investors such as Ron Conway, Paul Buchheit and Aydin Senkut to further the support of the young startups with increased funding.

Starting in 2011, Yuri Milner and SV Angel offer every Y Combinator company a $ 150, 000 convertible note investment.

Y Combinator was founded in March 2005 by Paul Graham with his Viaweb co-founders Robert Morris and Trevor Blackwell, as well as Jessica Livingston who later became Graham's wife.

As of June 2011, Y Combinator had funded 316 startups.

For example, if company A sells product X through its sales force, company B sells product Y, and company A decides to buy company B then the new company could use each sales person to sell products X and Y, thereby increasing the revenue that each sales person generates for the company.

The company has honored Amos ' request that no Y Kant Tori Read material be re-released, although bootleg copies do exist.

Wang Laboratories was a computer company founded in 1951 by Dr. An Wang and Dr. G. Y. Chu.

New York, Boston: T. Y. Crowell & company.

Colorful company founded by Bush relocates to N. Y .", Houston Business Journal, April 26, 1999

In 1999 the site was re-branded to sister company Haven Holidays and renamed Hafan Y Môr ..

Further, Grey Gull was still using some " out-sourced " sides, which bore control numbers with a letter prefix indicating the source company ( i. e. " Y " for NYRL ).

Though this product ( Developed by T. Lindgren and A. Bennedsen ) was never released, the company did release a WinHelp authoring tool called W. Y. S. I.

For example, if Bill works for company X and Jane works for company Y, then it is not a problem for each of them to be employee # 123.

The company that evolved into Gulfstream Aerospace Corp. started in the late 1950s when Grumman Aircraft Engineering Co., known for military aircraft production, developed a marketable business aircraft at its facilities in Bethpage, N. Y.

Mitochondrial DNA haplogroup Y is otherwise found mainly among Nivkhs, and with lower frequency among Tungusic peoples, Koreans, Mongols ( including Kalmyks and Buryats ), Chinese, Japanese, Central Asians, South Siberian Turkic peoples ( e. g. Tuvans, Todjins, Soyots ), Koryaks, Alyutors, Itelmens, Taiwanese aborigines, Filipinos, Indonesians, and Malaysians.

* Grayson, Albert Kirk ( 1975 ): Assyrian and Babylonian Chronicles ( ABC ), Locust Valley, N. Y., Augustin ; reed.

* Coffin, Tristram P .; Cohen, Hennig, ( editors ), Folklore in America ; tales, songs, superstitions, proverbs, riddles, games, folk drama and folk festivals, Garden City, N. Y.: Doubleday, 1966.

A binary relation R is usually defined as an ordered triple ( X, Y, G ) where X and Y are arbitrary sets ( or classes ), and G is a subset of the Cartesian product X × Y.

The sets X and Y are called the domain ( or the set of departure ) and codomain ( or the set of destination ), respectively, of the relation, and G is called its graph.

Similarly, given any element y of Y, there is a function f < sub > y </ sub >, or f (·, y ), from X to Z, given by f < sub > y </ sub >( x ) := f ( x, y ).

The Bessel functions of the second kind, denoted by Y < sub > α </ sub >( x ), occasionally denoted instead by N < sub > α </ sub >( x ), are solutions of the Bessel differential equation.

Plot of Bessel function of the second kind, Y < sub > α </ sub >( x ), for integer orders α = 0, 1, 2.

If ( x, y ) are the Cartesian coordinates of a point, then (− x, y ) are the coordinates of its reflection across the second coordinate axis ( the Y axis ), as if that line were a mirror.

But there could be a third variable ( Z ) that influences ( Y ), and X might not be the true cause at all.

In the following descriptions, α, β, and γ represent any string of terminals / nonterminals ( including the empty string ), X and Y represent single nonterminals, and a represents a terminal symbol.

* Prediction: For every state in S ( k ) of the form ( X → α • Y β, j ) ( where j is the origin position as above ), add ( Y → • γ, k ) to S ( k ) for every production in the grammar with Y on the left-hand side ( Y → γ ).

* Completion: For every state in S ( k ) of the form ( X → γ •, j ), find states in S ( j ) of the form ( Y → α • X β, i ) and add ( Y → α X • β, i ) to S ( k ).

Ezekiel (;, Y ' ḥez ' qel, ), Arabic :< font size = 2 > حزقيال </ font > Hazqiyal, ' God will strengthen ' ( from, ḥazaq,, literally ' to fasten upon ,' figuratively ' strong ,' and, el,, literally ' God ', and so figuratively ' The Almighty ') is the central protagonist of the Book of Ezekiel in the Hebrew Bible.

* Édouard Schuré, The Great Initiates: A Study of the Secret History of Religions ( 1889 ), Blauvelt ( N. Y .): Garber Books, 1992, 480 p. “ Rama, Krishna, Hermes, Moses, Orpheus, Pythagoras, Plato, and Jesus .”

In humans, an ovum can carry only an X chromosome ( of the X and Y chromosomes ), whereas a sperm may carry either an X or a Y ; thus the male sperm determines the sex of any resulting zygote, if the zygote has two X chromosomes it will develop into a female, if it has an X and a Y chromosome, it will develop into a male.