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The non-orientable genus, demigenus, or Euler genus of a connected, non-orientable closed surface is a positive integer representing the number of cross-caps attached to a sphere. Alternatively, it can be defined for a closed surface in terms of the Euler characteristic χ, via the relationship χ = 2 − k , where k is the non-orientable genus.
Notes Works cited References External links 0-9 S.S. Kresge Lunch Counter and Soda Fountain, about 1920 86 Main article: 86 1. Soda-counter term meaning an item was no longer available 2. "Eighty-six" means to discard, eliminate, or deny service A abe's cabe 1. Five dollar bill 2. See fin, a fiver, half a sawbuck absent treatment Engaging in dance with a cautious partner ab-so-lute-ly ...
The number e is a mathematical constant approximately equal to 2.71828 that is the base of the natural logarithm and exponential function.It is sometimes called Euler's number, after the Swiss mathematician Leonhard Euler, though this can invite confusion with Euler numbers, or with Euler's constant, a different constant typically denoted .
In 1993 Cassell commissioned Green to create a new dictionary, this time broadening the focus to include slang terms from approximately 1500 onwards, but without citations. The first edition of the single-volume Cassell's Dictionary of Slang appeared in 1998. [5] Cassell immediately commissioned a sequel with full historical quotations as in ...
The genus (sometimes called the demigenus or Euler genus) of a connected non-orientable closed surface is a positive integer representing the number of cross-caps attached to a sphere. Alternatively, it can be defined for a closed surface in terms of the Euler characteristic χ, via the relationship χ = 2 − g, where g is the non-orientable ...
Thus the verb "to oof" can mean killing another player in a game or messing up something oneself. [107] [108] oomf Abbreviation for "One of My Followers". [109] opp Short for opposition or enemies; describes an individual's opponents. A secondary, older definition has the term be short for "other peoples' pussy". Originated from street and gang ...
The Dictionary of American Slang is an English slang dictionary. The first edition was edited by Stuart Flexner and Harold Wentworth and published in 1960 by Thomas Y. Crowell Company . [ 1 ] After Wentworth's death in 1965, [ 2 ] Flexner wrote a supplemented edition which was published in 1967. [ 3 ]
First edition. Graph Theory, 1736–1936 is a book in the history of mathematics on graph theory.It focuses on the foundational documents of the field, beginning with the 1736 paper of Leonhard Euler on the Seven Bridges of Königsberg and ending with the first textbook on the subject, published in 1936 by Dénes Kőnig.