# CTAN update: diffcoeff

Version 3 of the diffcoeff package adds a command for differentials (e.g. the dx in an integral) to ensure they are of the same form as used in derivatives (math-italic vs upright). Some simple fine-tuning spacing commands are also added.

The package's Catalogue entry can be viewed at http://www.ctan.org/pkg/diffcoeff The package's files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/diffcoeff

Thanks for the upload. For the CTAN Team Erik Braun

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## diffcoeff – Write differential coefficients easily and consistently

diffcoeff.sty allows the easy and consistent writing of ordinary, partial and other derivatives of arbitrary (algebraic or numeric) order. For mixed partial derivatives, the total order of differentiation is calculated by the package. Optional arguments allow specification of points of evaluation (ordinary derivatives), or variables held constant (partial derivatives), and the placement of the differentiand (numerator or appended).

The package is built on xtemplate, allowing systematic fine-tuning of the display and generation and use of variant forms (like derivatives built from D, \Delta or \delta). A command for differentials ensures the dx used in e.g. integrals is consistent with the form used in derivatives.

The package requires the LaTeX3 bundles l3kernel and l3packages.

Package | diffcoeff |

Version | 3.1 2019-03-10 |

Copyright | 2016–2019 Andrew Parsloe |

Maintainer | Andrew Parsloe |