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In mathematics, a combination is a selection of items from a set that has distinct members, such that the order of selection does not matter (unlike permutations).For example, given three fruits, say an apple, an orange and a pear, there are three combinations of two that can be drawn from this set: an apple and a pear; an apple and an orange; or a pear and an orange.
Combinations and permutations in the mathematical sense are described in several articles.. Described together, in-depth: Twelvefold way; Explained separately in a more accessible way:
Repetition is the simple repeating of a word, within a short space of words (including in a poem), with no particular placement of the words to secure emphasis.It is a multilinguistic written or spoken device, frequently used in English and several other languages, such as Hindi and Chinese, and so rarely termed a figure of speech.
The method of spaced repetition was first conceived of in the 1880s by German scientist Hermann Ebbinghaus.Ebbinghaus created the 'forgetting curve' - a graph portraying the loss of learned information over time - and postulated that it can be curbed by reviewing such information at several intervals over a period of time.
In 1959, Douglas Engelbart studied the projected downscaling of integrated circuit (IC) size, publishing his results in the article "Microelectronics, and the Art of Similitude".
Graphs of functions commonly used in the analysis of algorithms, showing the number of operations N as the result of input size n for each function. In theoretical computer science, the time complexity is the computational complexity that describes the amount of computer time it takes to run an algorithm.
Blunt was born James Hillier Blount, on 22 February 1974, [5] at Tidworth Camp military hospital, then in Hampshire, England. [6] His mother, Jane Ann Farran (née Amos), started a ski chalet company in the French Alpine resort of Méribel, while his father, Charles Blount, [7] was a cavalry officer in the 13th/18th Royal Hussars and then a helicopter pilot, becoming a colonel in the Army Air ...
Combination therapy or polytherapy is therapy that uses more than one medication or modality. Typically, the term refers to using multiple therapies to treat a single disease, and often all the therapies are pharmaceutical (although it can also involve non-medical therapy, such as the combination of medications and talk therapy to treat depression).