{"id":326,"date":"2023-07-06T07:22:50","date_gmt":"2023-07-06T07:22:50","guid":{"rendered":"https:\/\/mathority.org\/ja\/%e3%83%8c%e3%83%ab%e8%a1%8c%e5%88%97%e3%82%bc%e3%83%ad\/"},"modified":"2023-07-06T07:22:50","modified_gmt":"2023-07-06T07:22:50","slug":"%e3%83%8c%e3%83%ab%e8%a1%8c%e5%88%97%e3%82%bc%e3%83%ad","status":"publish","type":"post","link":"https:\/\/mathority.org\/ja\/%e3%83%8c%e3%83%ab%e8%a1%8c%e5%88%97%e3%82%bc%e3%83%ad\/","title":{"rendered":"Null \u307e\u305f\u306f null \u884c\u5217"},"content":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u3001\u30cc\u30eb\u884c\u5217\u3068\u3082\u547c\u3070\u308c\u308b\u30bc\u30ed\u884c\u5217\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u305d\u306e\u8981\u7d20\u306e\u5024\u304c\u884c\u5217\u306e\u6b21\u5143\u306b\u4f9d\u5b58\u3057\u306a\u3044\u3053\u3068\u3082\u4f8b\u3067\u78ba\u8a8d\u3057\u3001\u6700\u5f8c\u306b\u3053\u306e\u30bf\u30a4\u30d7\u306e\u884c\u5217\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u898b\u3064\u3051\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u30cc\u30eb\u884c\u5217\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"><strong>\u30cc\u30eb\u884c\u5217<\/strong>(\u307e\u305f\u306f\u30cc\u30eb\u884c\u5217) \u306f\u3001\u8981\u7d20\u304c\u3059\u3079\u3066\u30bc\u30ed (0) \u306b\u7b49\u3057\u3044\u884c\u5217\u3067\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u30bc\u30ed\u884c\u5217\u306e\u5b9a\u7fa9\u306b\u3088\u308a\u3001\u3053\u306e\u884c\u5217\u306f\u3001\u305d\u306e\u6570\u5024\u304c\u3059\u3079\u3066\u30bc\u30ed\u3067\u3042\u308b\u9650\u308a\u3001\u3059\u3079\u3066\u306e\u53ef\u80fd\u306a\u6b21\u5143\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u30cc\u30eb\u884c\u5217\u306e\u4f8b<\/h2>\n<div class=\"wp-block-columns is-layout-flex wp-container-4\">\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center has-text-color\" style=\"color:#1976d2\"> <span style=\"text-decoration: underline;\">2 \u00d7 2 \u30cc\u30eb\u884c\u5217\u306e\u4f8b<\/span><\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exemple-de-matrice-nulle-ou-nulle-de-dimension-22152-1.webp\" alt=\"\u6b21\u5143 2x2 \u306e\u30bc\u30ed\u307e\u305f\u306f\u30cc\u30eb\u884c\u5217\u306e\u4f8b\" class=\"wp-image-2768\" width=\"73\" height=\"73\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center has-text-color\" style=\"color:#1976d2\"> <span style=\"text-decoration: underline;\">3 \u00d7 3 \u30cc\u30eb\u884c\u5217\u306e\u4f8b<\/span><\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exemple-de-matrice-zero-ou-nulle-de-dimension-32153-1.webp\" alt=\"\u6b21\u5143 3x3 \u306e\u30bc\u30ed\u307e\u305f\u306f\u30cc\u30eb\u884c\u5217\u306e\u4f8b\" class=\"wp-image-2769\" width=\"110\" height=\"117\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center has-text-color\" style=\"color:#1976d2\"> <span style=\"text-decoration: underline;\">4 \u00d7 4 \u30cc\u30eb\u884c\u5217\u306e\u4f8b<\/span><\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exemple-de-matrice-nulle-ou-nulle-de-dimension-42154-1.webp\" alt=\"\u6b21\u5143 4x4 \u306e\u30bc\u30ed\u307e\u305f\u306f\u30cc\u30eb\u884c\u5217\u306e\u4f8b\" class=\"wp-image-2770\" width=\"145\" height=\"148\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>\u3053\u306e\u7279\u5b9a\u306e\u884c\u5217\u306f\u5358\u306b\u30bc\u30ed\u3067\u3044\u3063\u3071\u3044\u306e\u884c\u5217\u3067\u3042\u308b\u305f\u3081\u3001\u91cd\u8981\u3067\u306f\u306a\u3044\u3088\u3046\u306b\u601d\u308f\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001\u6570\u5b66\u3001\u7279\u306b\u7dda\u5f62\u4ee3\u6570\u306e\u5206\u91ce\u3067\u306f\u3001\u8a08\u7b97\u304c\u306f\u308b\u304b\u306b\u7c21\u5358\u306b\u306a\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u4fbf\u5229\u306a\u884c\u5217\u3067\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u30cc\u30eb\u884c\u5217\u306e\u30d7\u30ed\u30d1\u30c6\u30a3<\/h2>\n<p>Null (\u307e\u305f\u306f Null) \u884c\u5217\u306b\u306f\u6b21\u306e\u7279\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30bc\u30ed\u884c\u5217\u306f\u884c\u5217\u52a0\u7b97\u6f14\u7b97\u306e\u4e2d\u7acb\u8981\u7d20\u3067\u3042\u308b\u305f\u3081\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ac2f2c3b2989e505a4d61bab8759a13d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A + 0 =A\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"80\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<ul>\n<li>\u884c\u5217\u306e\u4e57\u7b97\u306b\u306f\u30bc\u30ed\u306e\u4e57\u7b97\u7279\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u4efb\u610f\u306e\u884c\u5217\u306b\u30bc\u30ed\u884c\u5217\u3092\u4e57\u7b97\u3057\u305f\u7a4d\u306f 0 \u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3751ce885f4d35454ac076342ecedf61_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A\\cdot 0 = 0 \\cdot A =0\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"126\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<ul>\n<li>\u884c\u5217\u304c\u6b63\u65b9\u884c\u5217\u306e\u5834\u5408\u3001\u30bc\u30ed\u884c\u5217\u306f\u5bfe\u79f0\u3068<a href=\"https:\/\/mathority.org\/ja\/\u975e\u5bfe\u79f0\u884c\u5217\u306e\u4f8b\u3068\u30d5\u309a\u30ed\u30cf\u309a\u30c6\u30a3\/\">\u975e\u5bfe\u79f0\u306e<\/a>\u4e21\u65b9\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u30bc\u30ed\u884c\u5217\u306f\u3001\u30e9\u30f3\u30af\u304c\u30bc\u30ed\u3067\u3042\u308b\u552f\u4e00\u306e\u884c\u5217\u3067\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u30bc\u30ed\u884c\u5217\u306e\u884c\u5217\u5f0f\u306f\u5e38\u306b 0 \u3068\u8a55\u4fa1\u3055\u308c\u308b\u305f\u3081\u3001\u3053\u306e\u30bf\u30a4\u30d7\u306e\u884c\u5217\u306b\u306f\u9006\u884c\u5217\u304c\u3042\u308a\u307e\u305b\u3093 (\u7279\u7570\u884c\u5217\u3067\u3059)\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u660e\u3089\u304b\u306b\u3001\u30bc\u30ed\u884c\u5217\u306f\u96f6<a href=\"https:\/\/mathority.org\/ja\/\u884c\u5217\u306e\u4f8b-nilpotent-\u30d5\u309a\u30ed\u30cf\u309a\u30c6\u30a3\/\">\u30dd\u30c6\u30f3\u30c8\u884c\u5217\u306e\u4e00\u4f8b<\/a>\u3067\u3059\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u3001\u30cc\u30eb\u884c\u5217\u3068\u3082\u547c\u3070\u308c\u308b\u30bc\u30ed\u884c\u5217\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u305d\u306e\u8981\u7d20\u306e\u5024\u304c\u884c\u5217\u306e\u6b21\u5143\u306b\u4f9d\u5b58\u3057\u306a\u3044\u3053\u3068\u3082\u4f8b\u3067\u78ba\u8a8d\u3057\u3001\u6700\u5f8c\u306b\u3053\u306e\u30bf\u30a4\u30d7\u306e\u884c\u5217\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u898b\u3064\u3051\u307e\u3059\u3002 \u30cc\u30eb\u884c\u5217\u3068\u306f\u4f55\u3067\u3059\u304b? \u30cc\u30eb\u884c\u5217(\u307e\u305f &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/ja\/%e3%83%8c%e3%83%ab%e8%a1%8c%e5%88%97%e3%82%bc%e3%83%ad\/\"> <span class=\"screen-reader-text\">Null \u307e\u305f\u306f null \u884c\u5217<\/span> \u3082\u3063\u3068\u8aad\u3080 &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[31],"tags":[],"class_list":["post-326","post","type-post","status-publish","format-standard","hentry","category-31"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Null \u307e\u305f\u306f null \u884c\u5217 - Mathority<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mathority.org\/ja\/\u30cc\u30eb\u884c\u5217\u30bc\u30ed\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Null \u307e\u305f\u306f null \u884c\u5217 - Mathority\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u3001\u30cc\u30eb\u884c\u5217\u3068\u3082\u547c\u3070\u308c\u308b\u30bc\u30ed\u884c\u5217\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u305d\u306e\u8981\u7d20\u306e\u5024\u304c\u884c\u5217\u306e\u6b21\u5143\u306b\u4f9d\u5b58\u3057\u306a\u3044\u3053\u3068\u3082\u4f8b\u3067\u78ba\u8a8d\u3057\u3001\u6700\u5f8c\u306b\u3053\u306e\u30bf\u30a4\u30d7\u306e\u884c\u5217\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u898b\u3064\u3051\u307e\u3059\u3002 \u30cc\u30eb\u884c\u5217\u3068\u306f\u4f55\u3067\u3059\u304b? \u30cc\u30eb\u884c\u5217(\u307e\u305f &hellip; Null \u307e\u305f\u306f null \u884c\u5217 \u3082\u3063\u3068\u8aad\u3080 &raquo;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mathority.org\/ja\/\u30cc\u30eb\u884c\u5217\u30bc\u30ed\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-06T07:22:50+00:00\" \/>\n<meta property=\"og:image\" 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