Package: nabla Title: Exact Derivatives via Automatic Differentiation Version: 0.7.1 Authors@R: person("Alexander", "Towell", role = c("aut", "cre"), email = "queelius@gmail.com", comment = c(ORCID = "0000-0001-6443-9897")) URL: https://github.com/queelius/nabla, https://metafunctor.com BugReports: https://github.com/queelius/nabla/issues Description: Exact automatic differentiation for R functions. Provides a composable derivative operator D that computes gradients, Hessians, Jacobians, and arbitrary-order derivative tensors at machine precision. D(D(f)) gives Hessians, D(D(D(f))) gives third-order tensors for skewness of maximum likelihood estimators, and so on to any order. Works through any R code including loops, branches, and control flow. License: MIT + file LICENSE Encoding: UTF-8 Roxygen: list(markdown = TRUE) RoxygenNote: 7.3.3 Depends: R (>= 4.0.0), methods Imports: stats Suggests: testthat (>= 3.0.0), knitr, rmarkdown Config/testthat/edition: 3 VignetteBuilder: knitr Collate: 'dual-class.R' 'dual-arithmetic.R' 'dual-math.R' 'dual-special.R' 'dual-higher.R' 'derivatives.R' 'nabla-package.R' Repository: https://queelius.r-universe.dev Date/Publication: 2026-02-26 07:04:13 UTC RemoteUrl: https://github.com/queelius/nabla RemoteRef: HEAD RemoteSha: 0e1ef3ca9412c545afe9f925aaaec2e1e526315b NeedsCompilation: no Packaged: 2026-07-03 15:02:39 UTC; root Author: Alexander Towell [aut, cre] (ORCID: ) Maintainer: Alexander Towell