% $Id: pst-math.sty 741 2023-07-03 17:53:43Z herbert $
%%
%% This is file `pst-math.sty'.
%%
%% IMPORTANT NOTICE:
%%
%% pst-math Copyright (C) 2023-     Herbert Voss <hvoss@tug.org>
%%
%% This package may be distributed under the terms of the LaTeX Project
%% Public License, as described in lppl.txt in the base LaTeX distribution.
%% Either version 1.0 or, at your option, any later version.
%%

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{pst-math}[2023/07/03 v 0.67 package wrapper for PSTricks pst-math.tex]
\RequirePackage{multido}
\RequirePackage{pstricks}
\RequirePackage{pst-calculate}
\RequirePackage{ifluatex}
\RequirePackage{xstring}
\input pst-math.tex
\ProvidesFile{pst-math.tex}
  [\filedate\space v\fileversion\space `PST-math' (hv)]
\IfFileExists{pst-math.pro}{\ProvidesFile{pst-math.pro}%
    [2018/12/13 v. 0.65,  PostScript prologue file (hv)]
\@addtofilelist{pst-math.pro}}{}%

\newcounter{Rand@No}\newcounter{Random@Left}\newcounter{Random@Right}\newcounter{Random@No@max}%
\setcounter{Rand@No}{0}\setcounter{Random@Left}{1}\setcounter{Random@Right}{1000}%

\def\defineRandIntervall(#1,#2)#3{%
  \setcounter{Random@Left}{#1}%
  \setcounter{Random@Right}{#2}%
  \setcounter{Random@No@max}{#3}%
  \setcounter{Rand@No}{0}%
  \gdef\RandomNumbers{}%
  \def\R@Control{}%
  \multido{\iA=1+1}{\theRandom@No@max}{\xdef\R@Control{0\R@Control}}%
}

\def\RandomNumbers{}

\def\makeSimpleRandomNumberList{%
  \def\RandomNumbers{}%
  \psforeach{\iA}{1,2,..,\theRandom@No@max}{%
    \edef\@Number{\pscalculate{randint(\theRandom@Left,\theRandom@Right)}}% Zufallszahl
    \ifnum\iA=1
      \xdef\RandomNumbers{\@Number}%
    \else
      \xdef\RandomNumbers{\RandomNumbers,\@Number}%
    \fi
  }%
}
%
\def\makeRandomNumberList{%
  \edef\@Number{\pscalculate{randint(\theRandom@Left,\theRandom@Right)}}% Zufallszahl
    \add@Number{\@Number}}

\def\R@Left{}\def\R@Right{}\def\R@Value{}%

\def\add@Number#1{%
  \StrChar{\R@Control}{#1}[\R@Value]
  \ifnum\R@Value=0 
    \stepcounter{Rand@No}%
    \ifx\RandomNumbers\@empty %  the first number ??
      \xdef\RandomNumbers{#1}%
    \else
      \xdef\RandomNumbers{\RandomNumbers,#1}%
    \fi
%    \ifnum\theRand@No=1\relax
%      \gdef\RandomNumbers{#1}%
%      \RandomNumbers\\
%    \else
%      \xdef\RandomNumbers{\RandomNumbers,#1}%
%      \RandomNumbers\\
%    \fi
    \StrLeft{\R@Control}{\the\numexpr#1-1}[\R@Left]%
    \StrRight{\R@Control}{\the\numexpr\theRandom@No@max-#1}[\R@Right]%
    \xdef\R@Control{\R@Left1\R@Right}%
  \fi
  \ifnum\theRand@No=\theRandom@No@max
    \def\next{}%
  \else
    \def\next{\makeRandomNumberList}%
  \fi
  \next
}
\def\getNumberFromList#1{%
  \setcounter{Rand@No}{1}%
  \edef\x{\noexpand\get@Index#1;\RandomNumbers}\x,,\relax}
\def\get@Index#1;#2,#3,#4\relax{%
  \ifnum\theRand@No = #1 
    \def\next{#2}%
  \else
    \stepcounter{Rand@No}%
    \def\next{\get@Index#1;#3,#4\relax}%
  \fi
  \next
}

\endinput