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.
conda install odsp-test::r-numderivconda install odsp-test/label/abs::r-numderivconda install odsp-test/label/abs-r::r-numderivconda install odsp-test/label/abs-r2::r-numderivconda install odsp-test/label/ptf_2019_q3::r-numderivconda install odsp-test/label/q2_fail::r-numderivconda install odsp-test/label/r-essentials::r-numderivconda install odsp-test/label/r-lang::r-numderivconda install odsp-test/label/test::r-numderiv