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...Package deriv october type title symbolic differentiation version date description r based solution for it admits user dened function as well substitution in arguments of functions to be differentiated some simplication is part the work license gpl suggests testthat bugreports https github com sgsokol issues roxygennote imports methods needscompilation no author andrewclausen serguei sokol andreas rappold maintainer repository cran publication utc rtopics documented format simplify index ralready contains two d and these have several limitations derivatives table can t modied at runtime only available c cannot substitute calls eg f...