{"id":1087,"date":"2014-11-30T22:05:14","date_gmt":"2014-11-30T22:05:14","guid":{"rendered":"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=1087"},"modified":"2025-10-31T11:55:06","modified_gmt":"2025-10-31T11:55:06","slug":"casio-fx-4000p","status":"publish","type":"post","link":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=1087","title":{"rendered":"CASIO FX-4000P"},"content":{"rendered":"<p><a href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2020\/10\/CASIO_FX4000P-10.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4786 \" src=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2020\/10\/CASIO_FX4000P-10.jpg\" alt=\"\" width=\"467\" height=\"726\" srcset=\"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2020\/10\/CASIO_FX4000P-10.jpg 637w, https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2020\/10\/CASIO_FX4000P-10-193x300.jpg 193w\" sizes=\"auto, (max-width: 467px) 100vw, 467px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">La <em>CASIO FX-4000P<\/em>\u00a0de 1985 succ\u00e8de aux prestigieuses\u00a0<em><a title=\"CASIO FX-602P\" href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=907\">FX-602P<\/a><\/em>\u00a0et <em>601P<\/em> (il existera une\u00a0mythique\u00a0<em>FX-603P<\/em>\u00a0mais produite durant la d\u00e9cennie 90).<\/p>\n<p style=\"text-align: justify;\">Le terme \u00ab\u00a0langage\u00a0\u00bb de programmation n&rsquo;est pas usurp\u00e9. Il est tout nouveau, symbolique, naturel, tr\u00e8s ais\u00e9 \u00e0 relire, il sera repris et enrichi au\u00a0fil des ann\u00e9es par les calculatrices graphiques de la marque qui arrivent. Ce langage manipule directement les variables, avec multiplications implicites, sans plus passer par les nombreuses interactions rappels m\u00e9moire\/registre d&rsquo;affichage des machines de la g\u00e9n\u00e9ration pr\u00e9c\u00e9dente toutes marques confondues. En comparaison, alors que le\u00a0<em>RPL<\/em> des\u00a0futures <em>Hewlett-Packard<\/em> (dont la toute proche <em>HP-28S<\/em>) vous imposera de vous adapter au langage, certes puissant, la <em>FX-4000<\/em> s&rsquo;adapte au v\u00f4tre.<\/p>\n<p style=\"text-align: justify;\">Une petite illustration avec le calcul programm\u00e9 du discriminant r\u00e9duit (<em>delta<\/em>) de la r\u00e9solution de l&rsquo;\u00e9quation du 2e degr\u00e9 o\u00f9 <em>delta<\/em> se d\u00e9termine par la formule <em>\u0394<\/em>=<em>b\u00b2-4ac<\/em>. On comprend l&rsquo;apport de ce nouveau langage, qui n&rsquo;est au demeurant pas plus puissant que les autres &#8211; il manque notamment la touche <em>PAUSE<\/em>\u00a0&#8211; mais bien plus lisible.<\/p>\n<address style=\"text-align: justify;\"><em>Sur Casio FX-602P :<\/em><\/address>\n<address style=\"text-align: justify;\"><em><span style=\"color: #008000;\">|<\/span>MR02 <span style=\"color: #008000;\">|<\/span> x\u00b2 <span style=\"color: #008000;\">|<\/span> &#8211; <span style=\"color: #008000;\">|<\/span> 4 <span style=\"color: #008000;\">|<\/span> * <span style=\"color: #008000;\">|<\/span>MR01<span style=\"color: #008000;\">|<\/span> * <span style=\"color: #008000;\">|<\/span>MR 03<span style=\"color: #008000;\">|<\/span> =\u00a0<span style=\"color: #008000;\">|<\/span><span style=\"color: #ff0000;\"><span style=\"color: #000000;\">Min04<span style=\"color: #008000;\">|<\/span><\/span><\/span><\/em><\/address>\n<address style=\"text-align: justify;\">\u00a0<\/address>\n<address style=\"text-align: justify;\"><em>Sur HP-28S :<\/em><\/address>\n<address style=\"text-align: justify;\"><em><span style=\"color: #008000;\"> |<\/span> B <span style=\"color: #008000;\">|<\/span>ENTER<span style=\"color: #008000;\">|<\/span> * <span style=\"color: #008000;\">|<\/span> 4 <span style=\"color: #008000;\">|<\/span> A <span style=\"color: #008000;\">|<\/span> * <span style=\"color: #008000;\">|<\/span> C <span style=\"color: #008000;\">|<\/span> * <span style=\"color: #008000;\">|<\/span> &#8211; <span style=\"color: #ff0000;\"><span style=\"color: #008000;\">|<\/span> <span style=\"color: #000000;\">&lsquo;<\/span> <span style=\"color: #008000;\">|<\/span><span style=\"color: #000000;\"> D<\/span> <span style=\"color: #008000;\">|<\/span><span style=\"color: #000000;\">STO<\/span><span style=\"color: #008000;\">|<\/span><\/span><\/em><\/address>\n<address style=\"text-align: justify;\">\u00a0<\/address>\n<address style=\"text-align: justify;\"><em>sur Casio FX-4000P :<\/em><\/address>\n<address style=\"text-align: justify;\"><em>B\u00b2 &#8211; 4AC\u00a0\u2192 D<\/em><\/address>\n<p>Dans ce langage, symbolique, les variables et leur contenus se voient confondus. Une <em>Casio 602P<\/em> (ou une <em>TI-58<\/em>)\u00a0 distinguera au contraire la variable de son contenu. Toute manipulation n\u00e9cessitera d&rsquo;extraire le contenu du contenant, de le manipuler au travers du registre d&rsquo;affichage, et de r\u00e9injecter si besoin le r\u00e9sultat affich\u00e9 dans la variable (une exception avec les cumuls en m\u00e9moire <em>M+<\/em> ou <em>SUM<\/em>, appliqu\u00e9s sur la variable mais agissant directement sur son contenu).<\/p>\n<p>La capacit\u00e9 m\u00e9moire de programmation de la <em>FX-4000P<\/em> culmine \u00e0 550 pas, c&rsquo;est un tout petit progr\u00e8s par rapport \u00e0 la <em>602<\/em> (512 pas). Les m\u00e9moires n&rsquo;ont plus de num\u00e9ro mais \u00e0 la place une lettre de A \u00e0 Z. Elles sont au nombre de 26, pouvant \u00eatre \u00e9tendues jusqu&rsquo;\u00e0 94 en grignotant la m\u00e9moire programme. La touche\u00a0<em>ALPHA<\/em> n&rsquo;annonce pas de grandes capacit\u00e9s. A part l&rsquo;insertion de messages et bien s\u00fbr l&rsquo;appel des variables au nom d\u00e9sormais alphab\u00e9tique, il faut oublier l&rsquo;espoir d&rsquo;une gestion\u00a0et m\u00e9morisation de cha\u00eenes de caract\u00e8res. La <em>602P<\/em> n&rsquo;\u00e9tait gu\u00e8re mieux lotie sur ce point.<\/p>\n<p>En conclusion, une machine importante et attachante.<\/p>\n<address style=\"text-align: justify;\">\u00a0<\/address>\n<address style=\"text-align: justify;\"><em>Mes remerciements \u00e0 badaze<\/em><\/address>\n","protected":false},"excerpt":{"rendered":"<p>La CASIO FX-4000P\u00a0de 1985 succ\u00e8de aux prestigieuses\u00a0FX-602P\u00a0et 601P (il existera une\u00a0mythique\u00a0FX-603P\u00a0mais produite durant la d\u00e9cennie 90). Le terme \u00ab\u00a0langage\u00a0\u00bb de programmation n&rsquo;est pas usurp\u00e9. Il est tout nouveau, symbolique, naturel, tr\u00e8s ais\u00e9 \u00e0 relire, il sera repris et enrichi au\u00a0fil des ann\u00e9es par les calculatrices graphiques de la marque qui arrivent. Ce langage manipule directement les variables, avec multiplications implicites,<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,5],"tags":[],"class_list":["post-1087","post","type-post","status-publish","format-standard","hentry","category-casio","category-epoque-moderne"],"_links":{"self":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/1087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1087"}],"version-history":[{"count":16,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/1087\/revisions"}],"predecessor-version":[{"id":8561,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/1087\/revisions\/8561"}],"wp:attachment":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}