diff options
Diffstat (limited to 'Master/texmf-dist/doc/latex/pgfplots/pgfmathlogtest.tex')
| -rw-r--r-- | Master/texmf-dist/doc/latex/pgfplots/pgfmathlogtest.tex | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/Master/texmf-dist/doc/latex/pgfplots/pgfmathlogtest.tex b/Master/texmf-dist/doc/latex/pgfplots/pgfmathlogtest.tex new file mode 100644 index 00000000000..5e0a4e0f4de --- /dev/null +++ b/Master/texmf-dist/doc/latex/pgfplots/pgfmathlogtest.tex @@ -0,0 +1,163 @@ +\documentclass[a4paper]{article} + +\usepackage[intlimits]{amsmath} +\usepackage{amssymb} +\usepackage{amsfonts} +\usepackage{ifpdf} + +\ifpdf +\else +\def\pgfsysdriver{pgfsys-dvipdfm.def} +\fi +\usepackage{pgfmathlog} + + + +\author{Christian Feuers\"anger} +\title{Test cases for pgfmathlog.sty} + +\begin{document} +\maketitle + +Hier evaluiere ich logarithmen. + +\message{HIER GEHTS LOS!}% +\def\vgl#1#2{% + \begingroup + \message{COMPUTING LOG(#1)}% + \pgfmathlog{#1}% + \let\actual=\pgfmathresult + \def\expected{#2}% + \pgfmathsubtract\actual\expected% + \let\abserr=\pgfmathresult + \pgfmathdivide\abserr\expected + \let\relerr=\pgfmathresult + \noindent + log(#1)\hfill= + \expected;\hfill% + actual=\actual;\hfill% + abserr=\abserr;\hfill% + relerr=\relerr;\hfill% + \endgroup + \par +}% +\def\normalize#1{% + \begingroup + \message{NORMALISING #1...}% + \pgfmathnormalisedfloatingpoint#1\to\M\powten\E + \[ #1 \mapsto \M\cdot 10^{\E} \] + \endgroup +} + + + + +%-------------------------------------------------- +% \showit{2.8128} +% log(12)=\pgfmathlog{1.2}\pgfmathadd{\pgfmathresult}{2.30258}\pgfmathresult\par +% \showit{1.2} +% \showit{4.0} +% log(1200)=\pgfmathlog{1.2}\pgfmathadd{\pgfmathresult}{6.9077}\pgfmathresult\par +% log(6.241e-7)=\pgfmathlog{6.241}\pgfmathadd{\pgfmathresult}{-16.11809}\pgfmathresult\par +%-------------------------------------------------- + +Referenz: + +\vgl{0.1}{-2.30259} +\vgl{0.12}{-2.12026} +\vgl{0.2}{-1.60944} +\vgl{0.3}{-1.20397} +\vgl{0.4}{-0.916291} +\vgl{0.5}{-0.693147} +\vgl{0.6}{-0.510826} +\vgl{0.7}{-0.356675} +\vgl{0.75}{-0.287682} +\vgl{0.8}{-0.223144} +\vgl{0.823}{-0.194799} +\vgl{0.9}{-0.105361} +\vgl{0.96}{-0.040822} +\vgl{1.2}{0.182322} +\vgl{1.5}{0.405465} +\vgl{1.6}{0.470004} +\vgl{9.0}{2.1972245773} +\vgl{9.2}{2.2192034} +\vgl{9.3}{2.23001440} +\vgl{9.7}{2.27212588} +\vgl{10.0}{2.302585092} +\vgl{100.0}{4.605170185} +\vgl{1351.0}{7.208600337} +\vgl{9752.0}{9.185227671} +\vgl{9600.0}{9.169518377} + +\vskip1cm +\vgl{0.000142}{-8.8596835} +\vgl{0.0054124}{-5.219062661} +\vgl{0.000912697124}{-6.9991064} + +\vskip1cm +\vgl{8.31160034e-02}{-2.48751801563782}% +\vgl{2.54685628e-02}{-3.67031041875206}% +\vgl{7.40715288e-03}{-4.90530914022879}% +\vgl{2.10192154e-03}{-6.16490333357987}% +\vgl{5.87352989e-04}{-7.43988457474844}% +\vgl{1.62269942e-04}{-8.72624930084187}% +\vgl{4.44248889e-05}{-10.0217106847708}% +\vgl{1.20714122e-05}{-11.3246705288704}% +\vgl{3.26101452e-06}{-12.6334722085451}% + +\vskip1cm +\vgl{5}{1.6094379124341}% +\vgl{17}{2.83321334405622}% +\vgl{39}{3.66356164612965}% +\vgl{49}{3.89182029811063}% +\vgl{129}{4.85981240436167}% +\vgl{321}{5.77144112313002}% +\vgl{769}{6.64509096950564}% +\vgl{1793}{7.49164547360513}% +\vgl{4097}{8.31801027754687}% +\vgl{9217}{9.12880488399366}% + + +Umwandlung nach float: +\normalize{123.41251}% +\normalize{123412.51}% +\normalize{12341251.0}% +\tracingmacros=2\tracingcommands=2 +\normalize{-12341251.0}% +\tracingmacros=0\tracingcommands=0 +\normalize{1.2341251}% +\normalize{0.12341251}% +\normalize{0.0012341251}% +\normalize{0.00000012341251}% +\normalize{-0.00000012341251}% + +\normalize{8.31160034e-02}% +\normalize{2.54685628e-02}% +\normalize{7.40715288e-03}% +\normalize{2.10192154e-03}% +\normalize{5.87352989e-04}% +\normalize{-1.62269942e-04}% +\normalize{4.44248889e-05}% +\normalize{1.20714122e-05}% +\normalize{3.26101452e-06}% +\normalize{3261.01452e-06}% +\normalize{0.000326101452e-06}% + +\message{SONDERFALL 0}% +\normalize{0} +\normalize{-0} +\normalize{-1} +\normalize{1.0e1} +\tracingmacros=2\tracingcommands=2 +\normalize{1e1} +\tracingmacros=0\tracingcommands=0 +\normalize{1141} +\normalize{-53e-5} + + + +\bibliographystyle{gerabbrv} %gerapali} %gerabbrv} %gerunsrt.bst} %gerabbrv}% gerplain} +% \bibliography{literatur.bib} +\end{document} + + |