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t. e. In mathematics, summation is the addition of a sequence of numbers, called addends or summands; the result is their sum or total. Beside numbers, other types of values can be summed as well: functions, vectors, matrices, polynomials and, in general, elements of any type of mathematical objects on which an operation denoted "+" is defined.
Summer is the hottest and brightest of the four temperate seasons, occurring after spring and before autumn. At or centred on the summer solstice, daylight hours are the longest and darkness hours are the shortest, with day length decreasing as the season progresses after the solstice. The earliest sunrises and latest sunsets also occur near ...
Donna Adrian Gaines (December 31, 1948 – May 17, 2012), [2] known professionally as Donna Summer, was an American singer and songwriter. She gained prominence during the disco era of the 1970s and became known as the "Queen of Disco", while her music gained a global following. [3] [4] Influenced by the counterculture of the 1960s, Summer ...
Suzanne Marie Somers ( née Mahoney; October 16, 1946 – October 15, 2023) [1] was an American actress, author, and businesswoman. She played the television roles of Chrissy Snow on Three's Company (1977–1981) and Carol Foster Lambert on Step by Step (1991–1998). Somers wrote more than 25 books, including two autobiographies, four diet ...
Summrs. Deante Adam Johnson [1] (born November 18, 1999), [3] known professionally as Summrs, is an American rapper and singer from Louisiana. He signed with Victor Victor Worldwide in 2021, although he departed the label in favor of 10K Projects, an imprint of Capitol Records the following year. He is best known for his releases on SoundCloud.
TOCOG. v. t. e. The 2020 Summer Olympics, [3] officially the Games of the XXXII Olympiad [4] and officially branded as Tokyo 2020, [5] were an international multi-sport event held from 23 July to 8 August 2021 in Tokyo, Japan, with some preliminary events that began on 21 July 2021.
The summer solstice occurs during the hemisphere's summer. In the Northern Hemisphere, this is the June solstice (20 or 21 June) and in the Southern Hemisphere, this is the December solstice (21 or 22 of December). Since prehistory, the summer solstice has been a significant time of year in many cultures, and has been marked by festivals and ...
Euler's formula, named after Leonhard Euler, is a mathematical formula in complex analysis that establishes the fundamental relationship between the trigonometric functions and the complex exponential function. Euler's formula states that, for any real number x, one has. where e is the base of the natural logarithm, i is the imaginary unit, and ...