-
1 logarithm
[ˈlɔgərɪðəm] noun( abbreviated to log [lɔg] ) the number of times eg 10 must be multiplied by itself to produce a particular number:لوغاريثْم10 ˣ 10 ˣ 10 or 103 = 1,000, so 3 is here the logarithm of 1,000.
-
2 logaritmo de un número
Diccionario Español-Inglés Matemáticas > logaritmo de un número
-
3 логарифм числа по основанию
Русско-английский синонимический словарь > логарифм числа по основанию
-
4 логарифм
log, logarithm* * *логари́фм м.
logarithmнаходи́ть логари́фм числа́ — take the logarithm of a numberпереходи́ть к логари́фмам — pass to logarithms …логари́фм при основа́нии логари́фм — logarithm to (the) baseлогари́фм числа́ N по основа́нию a — the logarithm of the number N to (the) base aга́уссовы логари́фмы — addition logarithms and subtraction logarithmsгиперболи́ческий логари́фм — hyperbolic [natural, Napierian] logarithmдвои́чный логари́фм — binary logarithmдвойно́й логари́фм — log-logдесяти́чный логари́фм — [lg] decimal logarithm, log10, logинтегра́льный логари́фм — integral logarithmнатура́льный логари́фм — [ln] natural [hyperbolic, Napierian] logarithm, loge, lnне́перов логари́фм — Napierian [natural, hyperbolic] logarithmобращё́нный логари́фм — inverse logarithm, antilogarithm of a numberповто́рный логари́фм — iterated logarithm, log-log -
5 Kennziffer
f2. MATH. characteristic, index (of a logarithm)* * *die Kennzifferindex number* * *Kẹnn|zif|ferf(code) number; (MATH) characteristic; (COMM) reference number; (bei Zeitungsinserat) box number* * *Kenn·zif·ferf code [or box] numbererzeugnisbezogene \Kennziffer reference number* * *die reference number; (bei einem Zeitungsinserat) box number* * ** * *die reference number; (bei einem Zeitungsinserat) box number* * *f.code digit n. -
6 Napier (Neper), John
SUBJECT AREA: Electronics and information technology[br]b. 1550 Merchiston Castle, Edinburgh, Scotlandd. 4 April 1617 Merchiston Castle, Edinburgh, Scotland[br]Scottish mathematician and theological writer noted for his discovery of logarithms, a powerful aid to mathematical calculations.[br]Born into a family of Scottish landowners, at the early age of 13 years Napier went to the University of St Andrews in Fife, but he apparently left before taking his degree. An extreme Protestant, he was active in the struggles with the Roman Catholic Church and in 1594 he dedicated to James VI of Scotland his Plaine Discovery of the Whole Revelation of St John, an attempt to promote the Protestant case in the guise of a learned study. About this time, as well as being involved in the development of military equipment, he devoted much of his time to finding methods of simplifying the tedious calculations involved in astronomy. Eventually he realized that by representing numbers in terms of the power to which a "base" number needed to be raised to produce them, it was possible to perform multiplication and division and to find roots, by the simpler processes of addition, substraction and integer division, respectively.A description of the principle of his "logarithms" (from the Gk. logos, reckoning, and arithmos, number), how he arrived at the idea and how they could be used was published in 1614 under the title Mirifici Logarithmorum Canonis Descriptio. Two years after his death his Mirifici Logarithmorum Canonis Constructio appeared, in which he explained how to calculate the logarithms of numbers and gave tables of them to eight significant figures, a novel feature being the use of the decimal point to distinguish the integral and fractional parts of the logarithm. As originally conceived, Napier's tables of logarithms were calculated using the natural number e(=2.71828…) as the base, not directly, but in effect according to the formula: Naperian logx= 107(log e 107-log e x) so that the original Naperian logarithm of a number decreased as the number increased. However, prior to his death he had readily acceded to a suggestion by Henry Briggs that it would greatly facilitate their use if logarithms were simply defined as the value to which the decimal base 10 needed to be raised to realize the number in question. He was almost certainly also aware of the work of Joost Burgi.No doubt as an extension of his ideas of logarithms, Napier also devised a means of manually performing multiplication and division by means of a system of rods known as Napier's Bones, a forerunner of the modern slide-rule, which evolved as a result of successive developments by Edmund Gunther, William Oughtred and others. Other contributions to mathematics by Napier include important simplifying discoveries in spherical trigonometry. However, his discovery of logarithms was undoubtedly his greatest achievement.[br]BibliographyNapier's "Descriptio" and his "Constructio" were published in English translation as Description of the Marvelous Canon of Logarithms (1857) and W.R.MacDonald's Construction of the Marvelous Canon of Logarithms (1889), which also catalogues all his works. His Rabdologiae, seu Numerationis per Virgulas Libri Duo (1617) was published in English as Divining Rods, or Two Books of Numbering by Means of Rods (1667).Further ReadingD.Stewart and W.Minto, 1787, An Account of the Life Writings and Inventions of John Napier of Merchiston (an early account of Napier's work).C.G.Knott (ed.), 1915, Napier Tercentenary Memorial Volume (the fullest account of Napier's work).KF -
7 логарифм
-
8 находить
1) determine
2) find
3) found
4) search out
5) see
6) think
– находить корень
– находить по
– находить по закону
– находить производную
– находить экстремум
-
9 находить
•Once the function has been arrived at (or found),...
•It would be important to identify the pathways by which...
•To help you locate specific terms in the text,...
•These two unknowns cannot be evaluated (or found) from the single equation.
•The mass of the Earth was worked out (разг.) by another method.
•The designers's goal is to arrive at a proper economic balance of investment and operating costs.
•The instrument quickly locates (or localizes, or detects, or spots) lost circulation zones.
•The torpedo locates its target by acoustic means.
•The rocket seeks its target by acoustical homing.
II•Given: The engine consumes 27.5 gallons per hour...
•Required: Amount of gasoline consumed.
•Look up the logarithm of the number preceding the power of 10.
Русско-английский научно-технический словарь переводчика > находить
-
10 находить логарифм числа
Русско-английский политехнический словарь > находить логарифм числа
-
11 находить
•Once the function has been arrived at (or found),...
•It would be important to identify the pathways by which...
•To help you locate specific terms in the text,...
•These two unknowns cannot be evaluated (or found) from the single equation.
•The mass of the Earth was worked out (разг.) by another method.
•The designers's goal is to arrive at a proper economic balance of investment and operating costs.
•The instrument quickly locates (or localizes, or detects, or spots) lost circulation zones.
•The torpedo locates its target by acoustic means.
•The rocket seeks its target by acoustical homing.
II•Given: The engine consumes 27.5 gallons per hour...
•Required: Amount of gasoline consumed.
•Look up the logarithm of the number preceding the power of 10.
* * *Находить - to find; to devise; to detect, to locate (обнаруживать); to obtain (получать)Near and far boundaries of the reattachment zone were found in this manner for all of the blockages.Vibration instrumentation detects a fatigue failure and terminates the test.They [cracks] can often be located by careful magnetic examination.Находить из-- The local mean heat transfer coefficient hd is found from the energy balance.Русско-английский научно-технический словарь переводчика > находить
-
12 Logarithmus
m; -, Logarithmen logarithm* * *der Logarithmuslogarithm* * *Lo|ga|rịth|mus [loga'rɪtmʊs] -, Logari\#thmen [-mən]mlogarithm, log* * *((abbreviated to log) the number of times eg 10 must be multiplied by itself to produce a particular number: 10 × 10 × 10 or 103 = 1,000, so 3 is here the logarithm of 1,000.) logarithm* * *Lo·ga·rith·mus<-, -rithmen>[logaˈrɪtmʊs, pl -rɪtmən]m MATH logarithm* * *der; Logarithmus, Logarithmen (Math.) logarithm; log* * ** * *der; Logarithmus, Logarithmen (Math.) logarithm; log* * *(Mathematik) m.logarithm n. -
13 логарифм
1) General subject: logarithm2) Naval: logarithmic3) Mathematics: log4) Atomic energy: artificial number -
14 пересчет
(напр. импульсов) scaling, ( из одних единиц в другие) translation* * *пересчё́т м.1. ( повторение вычисления) recalculation2. ( переход на другую систему единиц) conversionвести́ пересчё́т на, напр. 2, 10 вчт. — scale by, e. g., 2, 10в пересчё́те на — terms ofв пересчё́те на де́ньги — in terms of moneyв пересчё́те на, напр. год — on an, e. g., annual basisколи́чество тра́кторов в пересчё́те на 15-си́льные — tractor fleet in terms of 15-hp unitsпри пересчё́те на … — on conversion to3. ( переход на другой масштаб) scalingпересчё́т логари́фма — change of the base of a logarithmпересчё́т но́мера ( в транзитных соединениях) тлф. — (number) translation* * * -
15 Numerus
-
16 dziesiętny
adj* * *a.mat. decimal; ułamek dziesiętny decimal fraction; liczba dziesiętna decimal number; miary dziesiętne metric system; miejsce dziesiętne decimal point; logarytm dziesiętny common l. Briggsian logarithm; waga dziesiętna decimal scale; dziesiętny system miar i wag decimal system of weights and measures, metric system.The New English-Polish, Polish-English Kościuszko foundation dictionary > dziesiętny
-
17 numerus
subst. [ til logaritme] number of a logarithm -
18 antilogaritma
n. antilogarithm, number that matches a logarithm (Mathematics)* * *antilogarithm -
19 로그
n. log, logarithm, power to which a base must be raised to produce a given number (Mathematics) -
20 изменение
alteration, change, changing, shift, variation* * *измене́ние с.
change; variation; modificationизмене́ние А в зави́симости от Б — change in A with Bизмене́ние на какую-л. величину́ или коли́чество — a change of …измене́ние напряже́ния сигна́ла на 5 вольт — a change of 5 V in the signal voltageизмене́ние чего-л. или в чём-л. — a change in …измене́ние температу́ры на 10° — a change of 10° in temperatureбесконе́чно ма́лое измене́ние — infinitesimal changeвеково́е измене́ние — secular variationизмене́ние во вре́мени — time variation, variation in [with] time, behaviour in the time domainдопусти́мое измене́ние в … — tolerance on …измене́ние зна́ка — change of signизмене́ние зна́ка числа́ (на обра́тный) — sign reversal of a numberизмене́ние масшта́ба — change of scale, scale change, rescalingизмене́ние направле́ния (на обра́тное) — change of direction, reversalизмене́ние направле́ния ли́нии за́данного пути́ [ЛЗП] навиг. — track changeизмене́ние нормиро́вки — renormalizationограни́ченное измене́ние — bounded variationизмене́ние основа́ния (логари́фма) — change of base (of a logarithm)относи́тельное измене́ние в … — ( в виде дроби) fractional change in …; ( в процентах) percent change in …пла́вное измене́ние — smooth variationизмене́ние разме́ров — dimensional change, change in dimensionsре́зкое измене́ние — abrupt changeизмене́ние свойств какой-л. систе́мы, напр. во вре́мени — behaviour of a system, e. g., in the time domainизмене́ние сече́ния — change in cross-sectionизмене́ние сече́ния, ре́зкое — abrupt change in sectionскачкообра́зное измене́ние1. мат. discontinuous change2. (напр. частоты, яркости) jump-in, sudden [step] changeизмене́ние соотноше́ний — reproportioningизмене́ние состоя́ния — change of stateизмене́ние состоя́ния ионосфе́ры (напр. суточное, сезонное) — behaviour of the ionosphereступе́нчатое измене́ние — step changeсу́точное измене́ние — diurnal variationизмене́ние фа́зы — phase changeизмене́ние фа́зы на 180° — phase reversalизмене́ние фо́рмы — deformationизмене́ние фу́нкции — variation of a functionцикли́ческое измене́ние напряже́ний — cyclic variation of stressesцикли́ческое измене́ние температу́ры — thermal cyclingизмене́ние широ́т — latitude alternation, latitude variation
- 1
- 2
См. также в других словарях:
Logarithm — Log a*rithm (l[o^]g [.a]*r[i^][th] m), n. [Gr. lo gos word, account, proportion + ariqmo s number: cf. F. logarithme.] (Math.) One of a class of auxiliary numbers, devised by John Napier, of Merchiston, Scotland (1550 1617), to abridge… … The Collaborative International Dictionary of English
Logarithm — The graph of the logarithm to base 2 crosses the x axis (horizontal axis) at 1 and passes through the points with coordinates (2, 1), (4, 2), and (8, 3) … Wikipedia
logarithm — /law geuh ridh euhm, rith , log euh /, n. Math. the exponent of the power to which a base number must be raised to equal a given number; log: 2 is the logarithm of 100 to the base 10 (2 = log10 100). [1605 15; < NL logarithmus < Gk lóg(os) LOG +… … Universalium
logarithm — [[t]lɒ̱gərɪðəm, AM lɔ͟ːg [/t]] logarithms N COUNT In mathematics, the logarithm of a number is a number that it can be represented by in order to make a difficult multiplication or division sum simpler … English dictionary
logarithm — ► NOUN ▪ a quantity representing the power to which a fixed number (the base) must be raised to produce a given number. ORIGIN from Greek logos reckoning, ratio + arithmos number … English terms dictionary
logarithm — [lôg′ə rith΄əm, läg′ə rithəm] n. [ModL logarithmus < Gr logos, a word, proportion, ratio (see LOGIC) + arithmos, number (see ARITHMETIC)] Math. the exponent expressing the power to which a fixed number (the base) must be raised in order to… … English World dictionary
logarithm — 1610s, Mod.L. logarithmus, coined by Scottish mathematician John Napier (1550 1617), lit. ratio number, from Gk. logos proportion, ratio, word (see LOGOS (Cf. logos)) + arithmos number (see ARITHMETIC (Cf. arithmetic)) … Etymology dictionary
Logarithm of a matrix — In mathematics, a logarithm of a matrix is another matrix such that the matrix exponential of the latter matrix equals the original matrix. It is thus a generalization of the scalar logarithm and in some sense an inverse function of the matrix… … Wikipedia
Arithmetical complement of a logarithm — Logarithm Log a*rithm (l[o^]g [.a]*r[i^][th] m), n. [Gr. lo gos word, account, proportion + ariqmo s number: cf. F. logarithme.] (Math.) One of a class of auxiliary numbers, devised by John Napier, of Merchiston, Scotland (1550 1617), to abridge… … The Collaborative International Dictionary of English
Hyperbolic logarithm — Logarithm Log a*rithm (l[o^]g [.a]*r[i^][th] m), n. [Gr. lo gos word, account, proportion + ariqmo s number: cf. F. logarithme.] (Math.) One of a class of auxiliary numbers, devised by John Napier, of Merchiston, Scotland (1550 1617), to abridge… … The Collaborative International Dictionary of English
Napierian logarithm — Logarithm Log a*rithm (l[o^]g [.a]*r[i^][th] m), n. [Gr. lo gos word, account, proportion + ariqmo s number: cf. F. logarithme.] (Math.) One of a class of auxiliary numbers, devised by John Napier, of Merchiston, Scotland (1550 1617), to abridge… … The Collaborative International Dictionary of English