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English-Thai Dictionary

modulus

N ค่าสัมประสิทธิ์ หนึ่ง ทาง ฟิสิกส์ เลข ใน ระบบ logarithms เลขที่ เมื่อ หาร เลข อื่น สอง จำนวน จะ ให้ผล หาร เท่ากัน

Webster's 1913 Dictionary

MODULUS

Mod "u *lus, n.; pl. Moduli. Etym: [L., a small measure. See Module, n.] (Math. , Mech. , & Physics )

Defn: A quantity or coefficient, or constant, which expresses the measure of some specified force, property, or quality, as of elasticity, strength, efficiency, etc. ; a parameter. Modulus of a machine, a formula expressing the work which a given machine can perform under the conditions involved in its construction; the relation between the work done upon a machine by the moving power, and that yielded at the working points, either constantly, if its motion be uniform, or in the interval of time which it occupies in passing from any given velocity to the same velocity again, if its motion be variable; -- called also the efficiency of the machine. Mosley. Rankine. -- Modulus of a system of logarithms (Math. ), a number by which all the Napierian logarithms must be multiplied to obtain the logarithms in another system. -- Modulus of elasticity. (a ) The measure of the elastic force of any substance, expressed by the ratio of a stress on a given unit of the substance to the accompanying distortion, or strain. (b ) An expression of the force (usually in terms of the height in feet or weight in pounds of a column of the same body ) which would be necessary to elongate a prismatic body of a transverse section equal to a given unit, as a square inch or foot, to double, or to compress it to half, its original length, were that degree of elongation or compression possible, or within the limits of elasticity; -- called also Young's modulus. -- Modulus of rupture, the measure of the force necessary to break a given substance across, as a beam, expressed by eighteen times the load which is required to break a bar of one inch square, supported flatwise at two points one foot apart, and loaded in the middle between the points of support. Rankine.

New American Oxford Dictionary

modulus

mod u lus |ˈmäjələs ˈmɑʤələs |Mathematics ▶noun ( pl. moduli |-ˌlī, -ˌlē | ) 1 another term for absolute value. • the positive square root of the sum of the squares of the real and imaginary parts of a complex number. 2 a constant factor or ratio. • a constant indicating the relation between a physical effect and the force producing it. 3 a number used as a divisor for considering numbers in sets, numbers being considered congruent when giving the same remainder when divided by a particular modulus. ORIGIN mid 16th cent. (denoting an architectural unit of length ): from Latin, literally ‘measure, ’ diminutive of modus .

Oxford Dictionary

modulus

modulus |ˈmɒdjʊləs | ▶noun ( pl. moduli |-lʌɪ, -liː | ) Mathematics 1 another term for absolute value. • the positive square root of the sum of the squares of the real and imaginary parts of a complex number. 2 a constant factor or ratio. • a constant indicating the relation between a physical effect and the force producing it. 3 a number used as a divisor for considering numbers in sets, numbers being considered congruent when giving the same remainder when divided by a particular modulus. ORIGIN mid 16th cent. (denoting an architectural unit of length ): from Latin, literally ‘measure ’, diminutive of modus .