This package provides support for A5 paper sizes. It is superseded by geometry.

This LaTeX package provides a macro \circledtext to typeset circled text. Its starred version can produce an inverted version.

Heiko Oberdiek's hobsub package (and hobsub-hyperref and hobsub-generic packages) defined a mechanism for concatenating multiple files into a single file for faster loading. The disadvantage is that it introduces hard dependencies between the source files that are included and complicates distribution and updates. It was principally used with hyperref but is not currently used in any standard packages in TeX Live. The packages are still distributed as simple stubs that reference the included packages via \RequirePackage rather than copying their source.

The LXGW Font Family provides an CJK font family with a comprehensive character set for Chinese (Simplified/Traditional), Cantonese, and Japanese. This package also provides a fontset configuration of this font family for the CTeX-kit.

pTeX adds features related to vertical writing, and deals with other problems in typesetting Japanese. A manual (in both Japanese and English) is distributed as package pTeX-manual.

The package provides a kana parser for LuaTeX. It is a set of four macros that handle transliteration of text: from hiragana and katakana to Latin from Latin and katakana to hiragana from Latin and hiragana to katakana It can be used to write kana directly using only the ASCII character set or for education purposes. The package has support for obsolete and rarely used syllables, some only accessible via the provided toggle macro.

This package provides two macros: \ifisint and \ifisdim. They test if a given input string represents either a valid integer or a valid dimension for TeX.

Typesetting integrals, although common in LaTeX, is not particularly practical. The way in which the different parts are managed often generates unreadable source code, making modifications laborious. The package therefore follows a simple philosophy: focus on the essential element of an integral, the integrand. Everything else (limits, differentials, symbols) can be modified using keys. These keys are designed to allow you to easily and quickly change the style of an integral. Additionally, the package provides various auxiliary macros to support some keys which can have lengthy inputs.

This MetaPost package contains macros to draw arrows and braces in the Computer Modern style.

This package provides expandable arithmetic operations with integers, using the e-TeX extension \numexpr if it is available.

Light LaTeX Make (llmk) is yet another build tool specific for LaTeX documents. Its aim is to provide a simple way to specify a workflow of processing LaTeX documents and encourage people to always explicitly show the right workflow for each document. You can describe the workflows either in an external file llmk.toml or in a LaTeX document source in the form of magic comments. It provides a uniform way to describe the workflows available for nearly all TeX environments, and behaves exactly the same in any environment. At this point, llmk intentionally does not provide any method for user configuration. Therefore one can guarantee that for a LaTeX document with an llmk setup, the process of typesetting the document will be reproduced in any TeX environment with the program.

Pacioli was a 15th century mathematician, and his font was designed according to the divine proportion. The font consists of uppercase letters together with punctuation and some analphabetics; no lowercase or digits. The package provides Metafont source for the font together with LaTeX support.

The package provides rudimentary support for drawing Lewis Structures. Support is limited to elements that support the octet rule.

Pst-coil is a PSTricks based package for coils and zigzags and for coil and zigzag node connections.

The package provides emulation of pdfTeX primitives for LuaTeX v0.85+.

LyX is a document preparation system. It excels at letting you create complex technical and scientific articles with mathematics, cross-references, bibliographies, indexes, etc. It is very good for working with documents of any length in which the usual processing abilities are required: automatic sectioning and pagination, spell checking and so forth.

The package provides macros for drawing Chinese and Japanese abaci.

The package that implements a set (AuriocusKalligraphicus) of three calligraphic fonts derived from the author's handwriting in Adobe Type 1 Format, T1 encoding for use with LaTeX: Auriocus Kalligraphicus; Lukas Svatba; and Jana Skrivana. Each font features old style digits and (machine-generated) boldface and slanted versions. A variant of Lukas Svatba offers a long s.

The package deals with the behaviour of the LaTeX internal command \@ifnextchar, which skips blank spaces. This has the potential to surprise users, since it can produce really unwanted effects. A common example occurs with brackets starting a line following \\: the command looks for an optional argument, whereas the user wants the brackets to be printed. The package offers commands and options for modifying this behaviour, maybe limited to certain parts of the document source.

This package provides Concrete Roman fonts, designed by Donald Knuth, originally for use with Euler mathematics fonts. Alternative mathematics fonts, based on the concrete parameter set are available as the concmath fonts bundle. LaTeX support is offered by the beton, concmath and ccfonts packages. T1- and TS1-encoded versions of the fonts are available in the ecc bundle, and Adobe Type 1 versions of the ecc fonts are part of the cm-super bundle.

The package extends package changebar so it can be used with XeLaTeX. It introduces the new option xetex for use with XeLaTeX. Everything else remains the same and users should consult the original documentation for usage information.

This LaTeX package permits quickly typesetting board states of Puyo Puyo games. It supports large and small boards with arbitrary shape, hidden rows, current and next puyos, labels and move planning markers.

This package provides many preset yet customizable graph paper backgrounds. Some of the preset patterns include standard quadrille or graph pattern, dot grid, hexagons, isometric or triangular grid, squares with 45deg ``light cone'' lines, ruled, and more. Pattern sizes can be controlled via package options. There are several preset color palletes, and colors can be overridden.

``e.t.s.v. Thor'' stands for Elektrotechnische Studievereniging Thor, a study association of Electrical Engeering at the Eindhoven University of Technology. This package provides abbreviations useful for creating meeting notes or other documents within the association.