{"id":6287,"date":"2021-06-16T08:40:05","date_gmt":"2021-06-16T06:40:05","guid":{"rendered":"https:\/\/www.mathweb.fr\/euclide\/?p=6287"},"modified":"2021-10-18T17:25:57","modified_gmt":"2021-10-18T15:25:57","slug":"creer-une-table-de-multiplication-en-latex-a-laide-de-python","status":"publish","type":"post","link":"https:\/\/www.mathweb.fr\/euclide\/2021\/06\/16\/creer-une-table-de-multiplication-en-latex-a-laide-de-python\/","title":{"rendered":"Cr\u00e9er une table de multiplication en LaTeX \u00e0 l&#8217;aide de Python"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Pour m&#8217;occuper, j&#8217;ai eu envie de cr\u00e9er une table de multiplication en LaTeX \u00e0 l&#8217;aide de Python.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vous allez me dire : &#8220;mais pourquoi pas la faire en \\(\\LaTeX\\) directement ? Pourquoi passer par Python triple buse ? Question \u00e0 laquelle je vous r\u00e9pondrai: &#8220;Pourquoi pas ?&#8221;<\/p>\n\n\n\n<!--more-->\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Au menu sur cette page...<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.mathweb.fr\/euclide\/2021\/06\/16\/creer-une-table-de-multiplication-en-latex-a-laide-de-python\/#Une_table_de_multiplication_en_LaTeX_plusieurs_alternatives\" >Une table de multiplication en LaTeX: plusieurs alternatives<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.mathweb.fr\/euclide\/2021\/06\/16\/creer-une-table-de-multiplication-en-latex-a-laide-de-python\/#multido_et_tabular\" >multido et tabular ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.mathweb.fr\/euclide\/2021\/06\/16\/creer-une-table-de-multiplication-en-latex-a-laide-de-python\/#tikz\" >tikz ?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.mathweb.fr\/euclide\/2021\/06\/16\/creer-une-table-de-multiplication-en-latex-a-laide-de-python\/#Une_table_de_multiplication_en_LaTeX_a_laide_de_Python\" >Une table de multiplication en LaTeX: \u00e0 l&#8217;aide de Python<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Une_table_de_multiplication_en_LaTeX_plusieurs_alternatives\"><\/span>Une table de multiplication en LaTeX: plusieurs alternatives<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"multido_et_tabular\"><\/span>multido et tabular ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Effectivement, on peut tenter de construire notre table de multiplication directement en \\(\\LaTeX\\), mais c&#8217;est bigrement compliqu\u00e9&#8230; sauf si on souhaite taper un \u00e0 un tous les r\u00e9sultats. Et moi, je en veux pas car je suis un gros flemmard.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il faudrait faire appel \u00e0 une boucle: Le package <em>multido<\/em> fait des boucles, mais dans un environnement <em>tabular<\/em>, \u00e7a devient probl\u00e9matique car la macro \\multido.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il existe bien la macro \\Multido (avec une majuscule) qui fonctionne dans un environnement <em>tabular<\/em>, mais la documentation n&#8217;est pas loquace du tout sur celle-ci, et je n&#8217;ai trouv\u00e9 aucun script qui pourrait m&#8217;aider&#8230; Bref, trop compliqu\u00e9!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"tikz\"><\/span>tikz ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La solution graphique TiKZ est envisageable en effet, bien que lourde \u00e0 mes yeux:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"latex\" data-enlighter-theme=\"dracula\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\\documentclass{standalone}\n\\usepackage{amssymb}\n\\usepackage{tikz}\n\n\\newcommand{\\tabmul}[1]{%\n\\begin{tikzpicture}\n\\fill[gray!20] (-0.5,0.5) rectangle (#1+0.5,-0.5);\n\\fill[gray!20] (-0.5,0.5) rectangle (0.5,-#1-0.5);\n\\pgfmathparse{-#1-0.5}\\let\\e\\pgfmathresult\n\\foreach \\y in {0.5,-0.5,...,\\e}\n{\n\t\\draw (-0.5,\\y) -- (#1+0.5,\\y);\n\t\\draw (-\\y,0.5) -- (-\\y,-#1-0.5);\n}\n\\foreach\\x in {1,2,...,#1}\n{\n\t\\node at (\\x,0) {\\textbf{\\x}};\n\t\\node at (0,-\\x) {\\textbf{\\x}};\n}\n\\node at (0,0) {$\\times$};\n\\foreach\\y in {1,2,...,#1}\n{\n\t\\foreach\\x in {1,2,...,#1}\n\t{\n\t\t\\pgfmathparse{int(\\x*\\y)}\\let\\r\\pgfmathresult\n\t\t\\node at (\\x,-\\y) {\\r};\n\t}\n}\n\\end{tikzpicture}%\n}\n\\begin{document}\n\\tabmul{15}\n\\end{document}<\/pre>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-medium\"><a href=\"https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz.jpg\" data-fancybox=\"gallery\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz-300x300.jpg\" alt=\"table multiplication LaTeX TiKZ\" class=\"wp-image-6288\" srcset=\"https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz-300x300.jpg 300w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz-100x100.jpg 100w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz-600x600.jpg 600w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz-1024x1024.jpg 1024w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz-150x150.jpg 150w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz-768x768.jpg 768w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-tikz.jpg 1261w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Ouais, c&#8217;est vrai, c&#8217;est assez cool&#8230; La solution graphique offre un large \u00e9ventail de personnalisation. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Une_table_de_multiplication_en_LaTeX_a_laide_de_Python\"><\/span>Une table de multiplication en LaTeX: \u00e0 l&#8217;aide de Python<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">J&#8217;entends d\u00e9j\u00e0 (peut-\u00eatre \u00e0 juste titre) certain\u00b7e\u00b7s d&#8217;entre vous crier au scandale: g\u00e9n\u00e9rer un fichier \\(\\LaTeX\\) via Python, c&#8217;est lourd, c&#8217;est pas direct, \u00e7a pue des pieds&#8230; Mouaich&#8230; Ben j&#8217;m&#8217;en fiche un peu au final&#8230; Si \u00e7a m&#8217;amuse et que \u00e7a ne fait de mal \u00e0 personne, pourquoi pas ? En plus, \u00e7a donne l&#8217;occasion de manipuler le langage&#8230; Alors voici une solution:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"dracula\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">def table(n,pdf=True):\n    table = '\\\\documentclass{standalone}\\n\\\\usepackage{amssymb}\\n\\\\usepackage{xcolor}\\n\\\\usepackage{colortbl}\\n\\\\usepackage{cellspace}\\n\\\\setlength{\\\\cellspacetoplimit}{3mm}\\n\\\\setlength{\\\\cellspacebottomlimit}{3mm}\\n\\\\begin{document}\\n'\n    T = [ [i*j for j in range(1,n+1) ] for i in range(1,n+1) ]\n    table += '\\\\begin{tabular}{|>{\\\\columncolor{gray!20}}Sc|*{'+str(n)+'}{Sc|}}\\n\\\\rowcolor{gray!20}\\n\\\\hline\\n$\\\\times$ '\n    for i in range(1,n+1):\n        table += '&amp; ' + str(i)\n    table += '\\\\\\\\\\n\\\\hline\\n'\n    for j in range(1,n+1):\n        table += str(j)\n        for i in range(1,n+1):\n            table += ' &amp; ' + str(T[i-1][j-1])\n        table += '\\\\\\\\\\n\\\\hline\\n'\n    table += '\\\\end{tabular}\\n\\\\end{document}'\n    \n    Fichier = open('table.tex', 'w' , encoding='utf8')\n    Fichier.write( table )\n    Fichier.close()\n    \n    if pdf:\n        from os import system\n        system(\"pdflatex table.tex\")\n        system(\"START table.pdf\")<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">&gt;&gt;&gt; table(10,True)<\/pre>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-medium\"><a href=\"https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-python.jpg\" data-fancybox=\"gallery\"><img loading=\"lazy\" decoding=\"async\" width=\"286\" height=\"300\" src=\"https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-python-286x300.jpg\" alt=\"table multiplication LaTeX python\" class=\"wp-image-6291\" srcset=\"https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-python-286x300.jpg 286w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-python-300x315.jpg 300w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-python-600x630.jpg 600w, https:\/\/www.mathweb.fr\/euclide\/wp-content\/uploads\/2021\/06\/table-multiplication-python.jpg 697w\" sizes=\"auto, (max-width: 286px) 100vw, 286px\" \/><\/a><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">L&#8217;argument &#8220;True&#8221; pass\u00e9 dans la fonction <em>table<\/em> sert uniquement \u00e0 lancer la compilation via PdfLaTeX directement. Par d\u00e9faut, il vaut <em>False<\/em>; dans ce cas, seul le fichier \\(\\LaTeX\\) est cr\u00e9\u00e9. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans <a href=\"https:\/\/www.mathweb.fr\/euclide\/2019\/05\/26\/triangle-de-pascal-construit-avec-python-et-latex\/\" target=\"_blank\" rel=\"noreferrer noopener\">cet article<\/a> d\u00e9j\u00e0, je vous exposais une mani\u00e8re de construire le triangle de Pascal \u00e0 l&#8217;aide de PythonTeX&#8230; D&#8217;ailleurs, plut\u00f4t que de faire un script Python, on pourrait en effet tout mettre dans le fichier \\(\\LaTeX\\) (\u00e7a plaira s\u00fbrement \u00e0 quelques personnes).<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"latex\" data-enlighter-theme=\"dracula\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\\documentclass{standalone}\n\\usepackage{amssymb}\n\\usepackage{xcolor}\n\\usepackage{colortbl}\n\\usepackage{cellspace}\n\\setlength{\\cellspacetoplimit}{3mm}\n\\setlength{\\cellspacebottomlimit}{3mm}\n\\usepackage{pythontex}\n\n\\begin{pycode}\ndef table(n,pdf=True):\n    T = [ [i*j for j in range(1,n+1) ] for i in range(1,n+1) ]\n    table = '\\\\begin{tabular}{|>{\\\\columncolor{gray!20}}Sc|*{'+str(n)+'}{Sc|}}\\n\\\\rowcolor{gray!20}\\n\\\\hline\\n$\\\\times$ '\n    for i in range(1,n+1):\n        table += '&amp; ' + str(i)\n    table += '\\\\\\\\\\n\\\\hline\\n'\n    for j in range(1,n+1):\n        table += str(j)\n        for i in range(1,n+1):\n            table += ' &amp; ' + str(T[i-1][j-1])\n        table += '\\\\\\\\\\n\\\\hline\\n'\n    table += '\\\\end{tabular}'\n    \n    return table\n\\end{pycode}\n\n\\begin{document}\n\\begin{pycode}\nprint(table(10))\n\\end{pycode}\n\\end{document}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Attention: si vous utilisez PythonTeX, la cha\u00eene de compilation est diff\u00e9rente. Personnellement, j&#8217;utilise la cha\u00eene suivante sur TexMaker sous Windows 10 (Menu : Utilisateur &gt; Commandes Utilisateur &gt; \u00c9diter Commandes Utilisateur):<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">pdflatex --shell-escape -synctex=1 -interaction=nonstopmode %.tex|C:\\Users\\Stephane\\AppData\\Local\\Programs\\Python\\Python38-32\\python.exe \"C:\\Users\\Stephane\\AppData\\Local\\Programs\\MiKTeX 2.9\\scripts\\pythontex\\pythontex.py\" %.tex|pdflatex --shell-escape -synctex=1 -interaction=nonstopmode %.tex|\"C:\/Program Files (x86)\/Adobe\/Acrobat 11.0\/Acrobat\/Acrobat.exe\" %.pdf<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Pour m&#8217;occuper, j&#8217;ai eu envie de cr\u00e9er une table de multiplication en LaTeX \u00e0 l&#8217;aide de Python. Vous allez me dire : &#8220;mais pourquoi pas la faire en \\(\\LaTeX\\) directement ? Pourquoi passer par Python triple buse ? Question \u00e0 laquelle je vous r\u00e9pondrai: &#8220;Pourquoi pas ?&#8221;<\/p>\n","protected":false},"author":1,"featured_media":6293,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,1,5],"tags":[291,290],"class_list":["post-6287","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-informatique","category-latex","category-python","tag-multiplication","tag-table"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cr\u00e9er une table de multiplication en LaTeX \u00e0 l&#039;aide de Python - Mathweb.fr<\/title>\n<meta name=\"description\" content=\"Comment cr\u00e9er une table de multiplication en LaTeX ? Il existe plusieurs m\u00e9thodes. 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