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+%%----------------------------------------------------------------
+%% The bnumexpr package: Expressions with big integers
+%% Copyright (C) 2014 by Jean-Francois Burnol
+%%----------------------------------------------------------------
+Source: bnumexpr.dtx
+Version: v1.1a, 2014/09/22
+Author: Jean-Francois Burnol
+Info: Expressions with big integers
+License: LPPL 1.3c or later
+
+This README file: Usage, Installation, License
+
+Usage
+=====
+
+\usepackage{bnumexpr}
+
+Then \thebnumexpr <expression with +,-,*,/,(,)> \relax is like
+ \the\numexpr <expression with +,-,*,/,(,)> \relax
+with the difference of accepting or producing arbitrarily big
+integers.
+
+Example:
+ \thebnumexpr 30*(21-43*(512-67*(6133-812*2897)))\relax
+outputs:
+ -202785405180
+which would create an arithmetic overflow in \numexpr.
+
+\bnumexpr...\relax is a scaled down version of \xintiiexpr...\relax
+from package xintexpr.
+
+By default, bnumexpr.sty loads xint.sty for its arithmetic macros
+doing addition, subtraction, multiplication, division.
+
+- with option custom, xint.sty is not loaded and it is up to the
+user to define \bnumexprAdd, \bnumexprSub, \bnumexprMul, \bnumexprDiv
+
+- option bigintcalc loads the package of the same name and uses
+its arithmetic macros,
+
+- option l3bigint similarly with package l3bigint, which is
+downloadable from the development repository of the on-going
+LaTeX3 project.
+
+Option allowpower enables ^ as power operator (only for xint and
+bigintcalc currently).
+
+Installation
+============
+
+Obtain bnumexpr.dtx (and possibly, bnumexpr.ins and the README)
+from CTAN:
+ http://www.ctan.org/pkg/bnumexpr
+
+To generate files from the source bnumexpr.dtx:
+
+ - with bnumexpr.ins: "tex bnumexpr.ins" in the same repertory as
+ bnumexpr.dtx will create (or overwrite) the files in this repertory.
+
+ - without bnumexpr.ins: "tex bnumexpr.dtx" also extracts the files.
+
+ * bnumexpr.sty is the style file
+
+ * bnumexpr.readme reconstitutes this README.
+
+ * bnumexpr.changes lists changes since last version.
+
+ * bnumexpr.tex is used for generating 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:
+ set the suitable toggle in bnumexpr.tex to disable dvipdfmx
+ settings and compile it with pdflatex (thrice).
+
+ * without bnumexpr.tex:
+
+ pdflatex bnumexpr.dtx (thrice) generates simultaneously the style
+ file and 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, bnumexpr.changes, bnumexpr.readme may be discarded.
+
+License
+=======
+
+Copyright (C) 2014 by Jean-Francois Burnol (jfbu at free dot fr)
+
+This Work may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either
+version 1.3c of this license or (at your option) any later
+version. This version of this license is in
+ http://www.latex-project.org/lppl/lppl-1-3c.txt
+and the latest version of this license is in
+ http://www.latex-project.org/lppl.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 "maintained".
+
+The Current 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,
+ bnumexpr.changes, bnumexpr.readme
+
+End of README file.