Source: bnumexpr.dtx Version: v1.2a, 2015/10/14 (doc: 2015/10/14) Author: Jean-Francois Burnol Info: Expressions with big integers License: LPPL 1.3c or later README: USAGE, INSTALLATION, LICENSE Usage The package bnumexpr allows _expandable_ computations with big integers, the four infix operators +, -, *, / (which does rounded division), the power operators ^ or **, the factorial !, the truncated division //, and its associated modulo /:. For example: \thebnumexpr (92874927979^5-3197927979^6)/30!\relax outputs -4006240736596543944035189. The \relax ending token is mandatory and will be removed as a result of the evaluation. The expression parser is scaled-down from \xinttheiiexpr...\relax from package xintexpr [1], it does not handle boolean operators, conditional branching, variables and recognizes no functions. By default the underlying arithmetic macros are the ones provided by package xintcore [2] (its release 1.2 is required). [1] http://www.ctan.org/pkg/xint [2] http://www.ctan.org/pkg/xint bnumexpr has only one option _custom_ which says to not load xintcore, and a command \bnumexprsetup to inform the package which macros to use if not those from xintcore. This is a breaking release: some options and commands from v1.1 are not defined anymore (as \bnumexprsetup provides a new interface), and documents which used them will need updating. Notice that the possibility not to use the xintcore macros might be removed in the future: perhaps a future release will maintain during computations a private internal representation (especially taylored either for the xintcore macros or new ones which would be included within bnumexpr.sty itself) and the constraints this implies may render optional use of other macros impossible. Installation Obtain bnumexpr.dtx (and possibly, bnumexpr.ins and the README) from CTAN: http://www.ctan.org/pkg/bnumexpr Both "tex bnumexpr.ins" and "tex bnumexpr.dtx" extract from bnumexpr.dtx the following files: bnumexpr.sty this is the style file. README.md reconstitutes this README. bnumexprchanges.tex lists changes from the initial version. bnumexpr.tex can be used to generate the documentation: - with latex+dvipdfmx: "latex bnumexpr.tex" (thrice) then "dvipdfmx bnumexpr.dvi". Ignore dvipdfmx warnings, but if the pdf file has problems with fonts (possibly from an old dvipdfmx), use then rather pdflatex. - with pdflatex: "pdflatex bnumexpr.tex" (thrice). In both cases files README.md and bnumexprchanges.tex must be present in the same repertory. without bnumexpr.tex: "pdflatex bnumexpr.dtx" (thrice) extracts all files and simultaneously generates the pdf documentation. Finishing the installation: bnumexpr.sty --> TDS:tex/latex/bnumexpr/ bnumexpr.dtx --> TDS:source/latex/bnumexpr/ bnumexpr.ins --> TDS:source/latex/bnumexpr/ bnumexpr.pdf --> TDS:doc/latex/bnumexpr/ README --> TDS:doc/latex/bnumexpr/ Files bnumexpr.tex, bnumexprchanges.tex, README.md may be discarded. License Copyright (C) 2014-2015 by Jean-Francois Burnol This Work may be distributed and/or modified under the conditions of the LaTeX Project Public License 1.3c. This version of this license is in http://www.latex-project.org/lppl/lppl-1-3c.txt and version 1.3 or later is part of all distributions of LaTeX version 2005/12/01 or later. This Work has the LPPL maintenance status "author-maintained". The Author and Maintainer of this Work is Jean-Francois Burnol. This Work consists of the main source file bnumexpr.dtx and the derived files bnumexpr.sty, bnumexpr.pdf, bnumexpr.ins, bnumexpr.tex, bnumexprchanges.tex, README.md