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A number or letter put before a letter or quantity, known or unknown, to show how many times the latter is to be taken; as, 6x; bx; here 6 and b are coefficients of x.
A number, commonly used in computation as a factor, expressing the amount of some change or effect under certain fixed conditions as to temperature, length, volume, etc.; as, the coefficient of expansion; the coefficient of friction.
A scientifically based factor that is taken into account during calculations.
the numerical factor of a term. e.g. The coefficient of -3x2y is -3. The coefficient of a3b4c2 is 1.
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