Alexander Nozik created MATH-1143:
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Summary: Helper methods to FiniteDifferencesDifferentiator
Key: MATH-1143
URL: https://issues.apache.org/jira/browse/MATH-1143
Project: Commons Math
Issue Type: Improvement
Reporter: Alexander Nozik
Priority: Trivial
A DerivativeStructure and UnivariateDifferentiableFunction are great tools if
one needs to investigate the whole function but are not convenient if one just
needs derivative in a given point.
Perhaps you could add some helper methods to FiniteDifferencesDifferentiator or
to utility class like FunctionUtils. Also it would be good to have helper
methods to get the derivatives of UnivariateDifferentiableFunction or
MultivariateDifferentiableFunction as simple Univariate or Multivariate
functions (or vector-functions).
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