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Description: GNU R package for accurate numerical derivatives
This package provide methods for calculating (usually) accurate
numerical first and second order derivatives. Accurate calculations
are done using Richardson's extrapolation or, when applicable, a
complex step derivative is available. A simple difference method is
also provided. Simple difference is (usually) less accurate but is
much quicker than Richardson's extrapolation and provides a useful
cross-check. Methods are provided for real scalar and vector valued
functions.
Homepage: https://cran.r-project.org/package=numDeriv
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