Fr.: cycle de Carnot
Nicolas Léonard Sadi Carnot (1796-1832), a French physicist and military engineer who, in his 1824 Reflections on the Motive Power of Fire, gave the first successful theoretical account of heat engines; → cycle.
Fr.: convention Einstein
A notation convention in → tensor analysis whereby whenever there is an expression with a repeated → index, the summation is done over that index from 1 to 3 (or from 1 to n, where n is the space dimension). For example, the dot product of vectors a and b is usually written as: a.b = Σ (i = 1 to 3) ai.bi. In the Einstein notation this is simply written as a.b = ai.bi. This notation makes operations much easier. Same as Einstein summation convention.
yektâ-yazdân-bâvari, yektâ-parasti (#)
The belief or doctrine that there is only one → God.
Of a mathematical function, either continuously increasing or decreasing.
Yeknavâxt "monotonous," from yek "one, single," + navâxt"rhythm," from navâxtan, navâzidan "to play an instrument; to gratify," navâ "music, song, melody;" Mid.Pers. nw'c "to treat kindly, honour," niwag "music, melody;" Proto-Iranian *ni-uac-, from *ni- (→ ni-) + *uac- "to speak, treat kindly," → word.
The science and technology of producing and exploiting structures and systems at dimensions of roughly 1 to 100 → nanometers, that is those of single atoms and molecules. Materials with such minute structures possess mechanical, optical, chemical, magnetic or electronic properties not found in ordinary materials.
na, nâ, ni
Fr.: non; ne ... pas
Not, variant of noht, naht "in no way," from O.E. nawiht "nothing" (from na "no, never" + whit "whit"), akin to Pers. na, nâ, as below.
Na "no, not," variants nâ, ni,ma- (prohibitive) "not;" from Mid.Pers. nê, ma "no, not;" O.Pers. naiy, nai "not;" Av. nôit, naē "not;" cf. Skt. ná "not;" cf. L. ne-, in-, un-; Gk. ni; Lith. nè; O.C.S. ne "not;" E. not, as above; PIE *ne-.
Representation of numbers, quantities, or other entities by symbols; a system of symbols for such a purpose.
From L. notationem (nom. notatio) "a marking, explanation," from notatus, p.p. of notare "to note."
Namâdgân, from namâd, → symbol, + -gân suffix denoting order, organization, multiplicity.
Musical sound of specified frequency (pitch) produced by a musical instrument, voice, etc.
From M.E., from O.F., from M.L. nota "sign for musical tone; mark, sign, lettering."
Not, loanword from Fr.
1) No thing; not anything; naught.
Mid.Pers. hêc, hêc(i), hâca "any."
A general understanding; vague or imperfect conception or idea of something.
From L. notio "concept, conception, idea," from noscere "to know," → knowledge.
Pendâré, noun from pendâštan "to imagine, consider, think," → imaginary number.
Fr.: notation positionnelle
Fr.: notation positionnelle
A system of representing → numbers in which the → position of a → digit in a string of digits affects its value. The decimal system is a positional notation for expressing numbers. Same as → place-value notation and → positional number system.
namâdgân-e dâneši, ~ dânešik
Fr.: notation scientifique
A compact format for writing very large or very small numbers. Numbers are made up of three parts: the coefficient, the base and the exponent. For example 3.58 x 104 is the scientific notation for 35,800.