“subtangent”的英文意思_释义_用法

单词

subtangent

释义

ˈsubtangent Math.
[ad. mod.L. subtangens, -entem: see sub- 1 and tangent.]
That part of the axis of a curve which is contained between the tangent and the ordinate.
1715Phil. Trans. XXIX. 196 He determines the Proportion of the Subtangent to the Ordinate.1798Hutton Course Math. II. 306 The Method of Tangents, is a method of determining the quantity of the tangent and subtangent of any algebraic curve; the equation of the curve being given.1816tr. Lacroix' Diff. & Int. Calc. 75 The line PS will constantly tend to become equal to the subtangent PT.1827–8Hamilton in Encycl. Metrop (1845) I. 740/1 The subtangent is bisected by the curve, whether the coordinates are rectangular or oblique.

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