Xskak, as its prime function, saves information about a chess game for later use (e.g., to loop through a game to make an animated board). The package also extends the input that the parsing commands can handle and offers an interface to define and switch between indefinite levels of styles.

This guide, LaTeX for Musicians, explains how to create LaTeX documents that include several kinds of music elements: music symbols, song lyrics, guitar chords diagrams, lead sheets, music excerpts, guitar tablatures, multi-page scores.

The package defines maths mode commands for typesetting Gottlob Frege's concept-script in the style of his Grundgesetze der Arithmetik (Basic Laws of Arithmetic).

This package mimics the screen of older Texas Instruments dot matrix display calculators, specifically the TI-82 STATS.

The package is for printing two pages on a single (landscape) A4 page. Page numbers appear on the included pages, and not on the landscape container page.

This package offers a few alternative ways for declaring and marking coordinates and drawing a line with jumps over an already existent path, which is quite a common issue when drawing, for instance, electronic circuits (like with CircuiTikZ).

The package defines a number of new commands for typesetting fregean Begriffsschrift in LaTeX. It is loosely based on the package begriff, and offers a number of improvements including better relative lengths of the content stroke with respect to other strokes, content strokes that point at the middle of lines rather than the bottom, a greater width for the assertion stroke as compared to the content stroke, a more intuitive structure for the conditional, greater care taken to allow for the line width in the spacing of formulas.

This package provides a LaTeX class for typesetting books with a simple and clear design. Currently, it has native support for Chinese (simplified and traditional), English, French, German, Italian, Japanese, Portuguese (European and Brazilian), Russian and Spanish typesetting. It compiles with either XeLaTeX or LuaLaTeX.

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.

This package provides an exam class for Hefei University of Technology (China).

The original grffile package extended the file name processing of the graphics package to support a larger range of file names. The base LaTeX code now supports multiple dots and spaces, and this package by default is a stub that just loads graphicx.

seqsplit provides a command \seqsplit, which makes its argument splittable anywhere, and then leaves the TeX paragraph-maker to do the splitting. The package is suitable for situations when one needs to type long sequences of letters or of numbers in which there is no obvious break points to be found, such as in base-sequences in genes or calculations of transcendental numbers. While the package may obviously be used to typeset DNA sequences, the user may consider the dnaseq as a rather more powerful alternative.

This package repeats item of an index if a page or column break occurs within a list of subitems. This helps to find out to which main item a subitem belongs.

This package provides TikZ styles for creating special syntax diagrams known as railroad diagrams.

The crop.cfg file attempts to persuade crop.sty to work with XeTeX.

The package fills with colour gradients, using PSTricks. The RGB, CMYK and HSB models are supported. Other colour gradient mechanisms are to be found in package pst-slpe.

The package provides an unofficial thesis template in LaTeX for Huazhong University of Science and Technology.

This package provides two Georgian fonts, in both Metafont and Type 1 formats, which cover the Mxedruli and the Xucuri alphabets.

This package inhibits the usage of plain TeX and (on demand) of standard LaTeX mathematics environments. This is useful for class writers who want to encourage their users to use the environments provided by the amsmath package.

This package offers a ``calendar arrangement'' (atop of the TikZ calendar library) and provides a set of commands to highlighting, mark and annotate dates in a calendar.

The float package improves the interface for defining floating objects such as figures and tables. It introduces the boxed float, the ruled float and the plaintop float. You can define your own floats and improve the behaviour of the old ones. The package also provides the H float modifier option of the obsolete here package.

This package aims at an easy-to-use interface to typeset grading schemes in tabular format, in particular grading-schemes of exercises of mathematical olympiads where multiple solutions have to be graded and might offer mutual exclusive ways of receiving points.

This package provides a koma-script parameter set for letters on A4 paper, complying with Finnish standards SFS 2486, 2487 and 2488; suitable for window envelopes with window on the left size in the sizes C5, C65, E5 and E65 (although, because the address window is smaller, for sizes E5 and E65 the address may not fit within the window, but ordinary 3-line address should fit).

The bullcntr package defines the command \bullcntr, which may be thought of as an analogue of the \fnsymbol command: like the latter, it displays the value of a counter lying between 1 and 9, but uses, for the purpose, a regular pattern of bullets.