{"id":999,"date":"2020-03-17T09:00:00","date_gmt":"2020-03-17T08:00:00","guid":{"rendered":"https:\/\/smalltalks.eu\/blog\/?p=999"},"modified":"2026-09-28T13:20:37","modified_gmt":"2026-09-28T11:20:37","slug":"la-commutativite-ou-lart-de-retourner-la-situation-micmaths","status":"publish","type":"post","link":"https:\/\/smalltalks.eu\/blog\/2020\/03\/17\/la-commutativite-ou-lart-de-retourner-la-situation-micmaths\/","title":{"rendered":"La commutativit\u00e9, ou l&#8217;art de retourner la situation (Micmaths)"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"La commutativit\u00e9 ou l&amp;apos;art de retourner la situation\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/HuCWezjtvHQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Que 3 \u00d7 4 fasse 4 \u00d7 3, on l&#8217;apprend \u00e0 l&#8217;\u00e9cole sans y penser. La commutativit\u00e9 est pourtant une notion \u00e9l\u00e9gante et profonde, qui m\u00e8ne des op\u00e9rations les plus \u00e9l\u00e9mentaires jusqu&#8217;\u00e0 certains grands probl\u00e8mes de l&#8217;histoire des sciences, l\u00e0 o\u00f9 l&#8217;ordre des op\u00e9rations change tout.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans la m\u00eame s\u00e9rie : <a href=\"https:\/\/smalltalks.eu\/blog\/?p=995\">la conjecture de Syracuse<\/a>, <a href=\"https:\/\/smalltalks.eu\/blog\/?p=996\">la d\u00e9couverte qui a transform\u00e9 \u03c0<\/a>, <a href=\"https:\/\/smalltalks.eu\/blog\/?p=997\">le cinqui\u00e8me postulat d&#8217;Euclide<\/a>, <a href=\"https:\/\/smalltalks.eu\/blog\/?p=998\">le n\u0153ud de Conway<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Vid\u00e9o de Micka\u00ebl Launay (Micmaths), illustrations de Chlo\u00e9 Bouchaour.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Que 3 \u00d7 4 fasse 4 \u00d7 3, on l&#8217;apprend \u00e0 l&#8217;\u00e9cole sans y penser. La commutativit\u00e9 est pourtant une notion \u00e9l\u00e9gante et profonde, qui m\u00e8ne des op\u00e9rations les plus \u00e9l\u00e9mentaires jusqu&#8217;\u00e0 certains grands probl\u00e8mes de l&#8217;histoire des sciences, l\u00e0 o\u00f9 l&#8217;ordre des op\u00e9rations change tout. Dans la m\u00eame s\u00e9rie : la conjecture de Syracuse, la d\u00e9couverte qui a transform\u00e9 \u03c0, le cinqui\u00e8me postulat d&#8217;Euclide, le n\u0153ud de Conway. Vid\u00e9o de Micka\u00ebl Launay (Micmaths), illustrations de Chlo\u00e9 Bouchaour.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[381,280,282],"tags":[],"class_list":["post-999","post","type-post","status-publish","format-standard","hentry","category-micmaths","category-sciences","category-sciences-mathematiques"],"_links":{"self":[{"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/posts\/999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/comments?post=999"}],"version-history":[{"count":1,"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/posts\/999\/revisions"}],"predecessor-version":[{"id":1021,"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/posts\/999\/revisions\/1021"}],"wp:attachment":[{"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/media?parent=999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/categories?post=999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smalltalks.eu\/blog\/wp-json\/wp\/v2\/tags?post=999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}