# CTAN update: non-decimal-units

Completely rewrote backend in expl3, many new features added: - more output customization options, including option to use numprint for numbers and a column type for tabularray for more concise tables - more robust handling of conversion factors - simplified creation of new base units and unit groups

This package is located at https://mirrors.ctan.org/macros/latex/contrib/non-decimal-units More information is at https://www.ctan.org/pkg/non-decimal-units

Thanks for the upload. For the CTAN Team Erik Braun

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## non-decimal-units – Display and manipulate historical non-decimal units

Many historical unit systems were non-decimal. For example, the Danish rigsdaler — where 1 rigsdaler consists of 6 mark, each again consisting of 16 skilling for a total of 96 skilling per rigsdaler — was used from 1625 to 1875, when currency was decimalised to the current system of 1 krone = 100 øre.

Units for such measures as length, area, weight, and so on were also often non-decimal, and in fact remain so in the few places of the world that have not made the change to the metric system.

The non-decimal numbers were chosen due to their larger number of division factors, which simplified mental arithmetic, eg. when sharing an amount of money or dividing goods.

This package enables creation and configuration of such units to facilitate their presentation in textual and tabular contexts, as well as simple arithmetic.

Package | non-decimal-units |

Version | 2024-01-25 |

Maintainer | Mikkel Eide Eriksen |