From ae8b34f2a6cf05f2d12a7a0d4bb28f5643b00e41 Mon Sep 17 00:00:00 2001
From: Karl Berry <karl@freefriends.org>
Date: Mon, 30 Apr 2018 17:03:56 +0000
Subject: apnum (23apr18)

git-svn-id: svn://tug.org/texlive/trunk@47510 c570f23f-e606-0410-a88d-b1316a301751
---
 Master/texmf-dist/tex/generic/apnum/apnum.tex | 66 +++++++++++++++------------
 1 file changed, 38 insertions(+), 28 deletions(-)

(limited to 'Master/texmf-dist/tex/generic')

diff --git a/Master/texmf-dist/tex/generic/apnum/apnum.tex b/Master/texmf-dist/tex/generic/apnum/apnum.tex
index 4c2e885904f..91fc3bfde2e 100644
--- a/Master/texmf-dist/tex/generic/apnum/apnum.tex
+++ b/Master/texmf-dist/tex/generic/apnum/apnum.tex
@@ -1,10 +1,10 @@
 % Arbitrary precision numbers
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% 2014, 2015, 2016       Petr Olsak
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% 2014, 2015, 2016, 2018       Petr Olsak
 
 % See the documentation apnum.pdf or apnum.d for more information
 
-\def\apVERSION{1.6 <Feb 2016>}
+\def\apVERSION{1.7 <Apr 2018>}
 \message{The Arbitrary Precision Numbers, \apVERSION}
 
 %%%%%%%%%%%% Internal registers, sec. 2.1 in apnum.pdf
@@ -1033,7 +1033,7 @@
    \advance\apFRAC by-3
    \do\denom=\COS\X;%
    \ifnum\apSIGN=0 \apERR{\string\TAN: argument {\X} is out of range}\apRETURN\fi
-   \SIN\X\message{\OUT/\denom}%
+   \SIN\X
    \apDIV{\SIN\X}\denom
    \apEND
 }
@@ -1082,6 +1082,7 @@
 }
 \def\ACOS#1{\relax \apPIexec \apPLUS\apPIhalf{-\ASIN{#1}}}
 
+
 %%%%%%%%%%%% Printing expressions, sec 2.11 in apnum.pdf
 
 \def\eprint#1#2{\bgroup \apnumA=0 \apnumE=1 \apEVALb#1\limits 
@@ -1096,41 +1097,48 @@
    \let\ABS=\apEPabs \let\FAC=\apEPfac \let\BINOM=\apEPbinom
    \let\SGN=\apEPsgn \let\iDIV=\apEPidiv \let\iMOD=\apEPimod
    \let\iFLOOR=\apEPifloor \let\iFRAC=\apEPifrac
+   \let\apEPk=\empty \let\apEPy=\empty \def\apEPx{.}%
    \let\apEPi=\relax \apEPj
 }
 \def\apEPj{}
-\def\apEPplus#1#2{{#1}+{#2}}
-\def\apEPminus#1#2{{#1}-\apEPp#2\empty\end!!...}
+\def\apEPplus#1#2{\apEPp{#1}{?...}+\apEPp{#2}{!...}}
+\def\apEPminus#1#2{\apEPp{#1}{?...}-\apEPp{#2}{!!..}}
 \def\apEPmul#1#2{\def\tmpa{#1}\def\tmpb{-1}%
-   \ifx\tmpa\tmpb -\else \apEPp#1\empty\end!!...\apMULop\fi
-   \apEPp#2\empty\end!!!..}
-\def\apEPdiv#1#2{{#1}\over{#2}}
+   \ifx\tmpa\tmpb \if\apEPx!\left(-\apEPp{#2}{!!..}\right)\else
+                                  -\apEPp{#2}{!!..}\fi
+   \else \apEPp{#1}{?!..}\apMULop \apEPp{#2}{!!..}\fi
+}
+\def\apEPdiv#1#2{{\def\apEPx{.}#1}\over{\def\apEPx{.}#2}}
 \def\apEPpow#1#2{%
    \let\apEPy=\empty \apEPpowa{#1}\end{#2}%
-   \ifx\apEPy\empty \apEPp#1\empty\end!!!!!^{#2}\else#1\fi
+   \ifx\apEPy\empty \apEPp{#1}{!!!!}^{\def\apEPx{.}#2}\else#1\fi
 }
 \def\apEPpowa#1{\expandafter\apEPpowb#1;}
-\def\apEPpowb#1#2;\end#3{\ifx#1\apEPf \def\apEPy{\let\apEPy=\empty #3}\fi}
-\let\apEPy=\empty
-\def\apEPf#1#2{\mathop{\rm#1}\nolimits
+\def\apEPpowb#1#2;\end#3{\ifx#1\apEPf \def\apEPy{\let\apEPy=\empty\def\apEPx{.}#3}\fi}
+\def\apEPf#1#2{\begingroup 
+   \mathop{\rm#1}\nolimits
    \ifx\apEPy\empty \else ^{\apEPy}\let\apEPy=\empty \fi  
-   \eprint{#2}{\expandafter\apEPb}%
+   \def\apEPk{\mskip-\thinmuskip}%
+   \def\apEPx{.}%
+   \eprint{#2}{\expandafter\apEPb}\endgroup
 }
-\def\apEPb#1{\def\next{\left(\def\apEPe{\right)}}%
-   \ifx\apPPn#1\let\next=\relax \fi
+\def\apEPb#1#2{\def\next{\apEPk\left(\def\apEPe{\right)}}%
+   \ifx\apPPn#1\expandafter\apEPd#2.\end{}{\let\next=\relax}.\fi
    \ifx\apDIV#1\let\next=\relax \fi
-   \next#1%
-}
-\def\apEPp#1#2\end#3#4#5#6#7{%
-   \apEPa#1\bgroup{\left(}#3#4#5#6#7#1#2\apEPa#1\egroup{\right)}#3#4#5#6#7}
-\def\apEPa#1#2#3#4#5#6#7#8{%
-   \ifx#1\apEPplus  \ifx#4.#2\else#3\fi\fi
-   \ifx#1\apEPminus \ifx#5.#2\else#3\fi\fi
-   \ifx#1\apEPmul   \ifx#6.#2\else#3\fi\fi
-   \ifx#1\apEPdiv   \ifx#7.#2\else#3\fi\fi
-   \ifx#1\apEPpow   \ifx#8.#2\else#3\fi\fi
-   \ifx#1-\empty    \ifx#6.#2\else#3\fi\fi
-}
+   \next\let\apEPk=\empty #1{#2}%
+}
+\def\apEPp#1#2{\apEPq#1\end\bgroup{\left(\def\apEPx{.}}#2#1\apEPq#1\end\egroup{\right)}#2}
+\def\apEPq#1#2\end#3#4#5#6#7#8{
+   \ifx#5!\def\apEPx{!}\fi
+   \ifx#1\apEPplus  \ifx#6!#4\else#3\fi\else
+   \ifx#1\apEPminus \ifx#6!#4\else#3\fi\else
+   \ifx#1\apEPmul   \ifx#7!#4\else#3\fi\else
+   \ifx#1\apEPdiv   \ifx#8!#4\else#3\fi\else
+   \ifx#1\apEPpow   \ifx#8!#4\else#3\fi\else
+   \expandafter\apEPd#1.\end#3{}\apEPx\fi\fi\fi\fi\fi
+}
+\def\apEPd#1#2\end#3#4#5{\ifx-#1\if#5!\ifx#3\bgroup\left(\else\right)\fi\fi\else#4\fi} 
+
 \let\apMULop=\cdot
 \def\apEPabs#1{\left|\eprint{#1}{}\right|}
 \def\apEPfac#1{\eprint{#1}{\expandafter\apEPb}\,!}
@@ -1191,3 +1199,5 @@
 1.6 <Feb 2016>
     - \evalmdef introduced
     - \EXP for arg>=4 rewritten, \apEX register introduced
+1.7 <Apr 2018>
+    - \eprint: bug removed (round brackets around negative constants)
-- 
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