Equation of a curve

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(Math.) an equation which expresses the relation between the coördinates of every point in the curve.

See also: Equation

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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If A [not equal to] 0, B + C [not equal to] 0 then the equation (30) is third order rational equation of a curve. This curve.