Subderivative
Subderivative Sub`de*riv"a*tive, n. A word derived from a derivative, and not directly from the root; as, ``friendliness'' is a subderivative, being derived from ``friendly'', which is in turn a derivative from ``friend.'' [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Subderivative — In mathematics, the concepts of subderivative, subgradient, and subdifferential arise in convex analysis, that is, in the study of convex functions, often in connection to convex optimization. Let f : I →R be a real valued convex function defined …   Wikipedia

  • subderivative — “+ noun Etymology: sub + derivative : a word derived from a derivative friendliness is a subderivative from friendly which is derived from friend * * * /sub di riv euh tiv/, n. a word derived from a derivative. [SUB + DERIVATIVE] …   Useful english dictionary

  • subderivative — /sub di riv euh tiv/, n. a word derived from a derivative. [SUB + DERIVATIVE] * * * …   Universalium

  • subderivative — noun a) A word derived indirectly from a derivative of another b) The slope of a line that either touches, or is below the line of a convex function …   Wiktionary

  • subderivative — sub·derivative …   English syllables

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