Fr.: système non holonomique
A mechanical system with constraints on their velocity that are not derivable from position constraints. Nonholonomic systems arise, for instance, in mechanical systems that have rolling contact (for example, the rolling of wheels without slipping) or certain kinds of sliding contact (such as the sliding of skates). They are a remarkable generalization of classical Lagrangian and Hamiltonian systems in which one allows position constraints only.
Fr.: non homogène
Not homogeneous. → nonhomogeneous linear differential equation.
nonhomogeneous linear differential equation
hamugeš-e degarsâne-yi-ye xatti nâhamgen
Fr.: équation différentielle linéaire non homogène
A → linear differential equation if Q(x)≠ 0 on interval I.
The quality of an atom that has neither lost nor gained any electrons.
Not a linear function of the relevant variables.
Fr.: dynamique non-linéaire
Same as → chaos.
Fr.: instabilité non-linéaire
The instability of a physical or mathematical system that arises from the nonlinear nature of relevant variables and their interactions within the system.
Fr.: système non-linéaire
A system in which small changes can result in large effects, and large changes in small effects.
The property, condition, or state of being → nonlinear.
setâre-ye hamiše penhân (#)
A star that is never seen above the horizon from a given position. These stars are located between the celestial pole and a diurnal circle with an angular distance larger than the altitude of the pole.
Setâré, → star; hamiše penhân, literally "always hidden," coined by Biruni (A.D. 973-1050) in his at-Tafhim, from hamišé "always" (Mid.Pers. hamêšag "always") + penhân "hidden."
Fr.: non sense
Word or language having no meaning. → absurd.
Jafang "nonsense, futile."
setâre-ye hamiše peydâ (#)
A star that is always seen above the horizon from a given position. These stars are located between the celestial pole and a diurnal circle with an angular distance smaller than the altitude of the pole. Same as → circumpolar star.
Fr.: matrice non singulière
Fr.: non visqueux
The time of day when the Sun crosses the observer's meridian and is at its highest point above the horizon. At this point, the Sun lies due south of an observer in the northern hemisphere and due north of an observer in the southern hemisphere.
M.E. none; O.E. non, from L. nona hora "ninth hour" of daylight by Roman reckoning, about 3 p.m.
Nimruz, from nim "mid-, half" (Mid.Pers. nêm, nêmag "half;" Av. naēma- "half;" cf. Sk. néma- "half") + ruz→ day.
General: A standard, model, or pattern regarded as typical.
From Fr. norme, from O.Fr., from L. norma "carpenter's square, rule, pattern," of unknown origin.
Hanjâr "a straight road; way, rule, law; habit, custom; conduct; a mason's rule, a plumb-line, a level;" Mid.Pers. hanjâr "right, correct;" from Proto-Iranian *ham-cara-, *han-cara- prefixed *cara- "to move, walk" (cf. Av. car- "to move, go, walk," carāni "I would go," carāt "he would go;" Mod.Pers. caridan "to graze," gozârdan "to explain," gozâreš "explanation"); cf. Skt. samcara- "passage, way, road, path; going about, moving," from prefix sam- + cara- "moving, going, walking;" Gk. pelomai "to move;" L. colere "to till, cultivate, inhabit."
The Carpenter's Square. A small and inconspicuous southern constellation which lies between → Scorpius and → Centaurus. Its brightest star is only of magnitude 4.0. Abbreviation: Nor; genitive: Normae
Initially Norma et Regula, L. translation of l'Équerre et la Règle "the Set Square and the Ruler," as named by Abbé Nicolas Louis de Lacaille (1713-1762).
Guniyâ "carpenter's square," probably related to konj "angle, corner, confined place" (variants xong "corner, angle," Tabari kânj, Kurd. kunj, Hamadâni kom) and zânu "knee" (Av. žnu-), Skt. kona- "angle, corner," Gk. gonia "angle,", gony "knee," L. genu "knee," cuneus "a wedge," Albanian (Gheg dialect) kân "angle, corner," Albanian (Toks) kënd "angle, corner;" PIE base PIE base *g(e)neu-.
1) hanjârvar, hanjârmand; 2) hanjâr;
Fr.: 1) normal; 2) normale
1) Conforming to the usual standard, type, custom; not abnormal; regular; natural.
From L.L. normalis "standing at right angle, in conformity with rule," from L. normalis "made according to a carpenter's square," from norma "rule, pattern," literally "carpenter's square."
Hanjârvar, hanjârmand, adjectives of hanjâr, → norm.
Fr.: dispersion normale
Fr.: distribution normale
A theoretical frequency distribution for a set of variable data, usually represented by a bell-shaped curve with a mean at the center of the curve and tail widths proportional to the standard deviation of the data about the mean. Same as → Gaussian distribution.