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exponent

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exponent

In mathematics, a superscript number that indicates the number of times a term is multiplied by itself; for example x2 = x × x, 43 = 4 × 4 × 4.

Exponents obey certain rules. Terms that contain them are multiplied together by adding the exponents; for example, x2 × x5 = x7. Division of such terms is done by subtracting the exponents; for example, y5 ÷ y3 = y2. Any number with the exponent 0 is equal to 1; for example, x0 = 1 and 990 = 1.

See index notation.



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? Mentioned in ? References in classic literature
 
He had a considerable reputation in England as a critic and was the accredited exponent in this country of modern French literature.
Of Human Bondage by Maugham, W. Somerset View in context
Here and there, the inmate has visitors to see the sight; then he points his finger, with something of the complacency of a curator or authorised exponent, to this cart and to this, and seems to tell who sat here yesterday, and who there the day before.
A Tale Of Two Cities by Dickens, Charles View in context
Nothing walks, or creeps, or grows, or exists, which must not in turn arise and walk before him as exponent of his meaning.
Essays, Second Series by Emerson, Ralph Waldo View in context
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