{"id":23414,"date":"2026-05-21T14:02:28","date_gmt":"2026-05-21T05:02:28","guid":{"rendered":"https:\/\/lanqiu.aboutphlaw.com\/?p=23414"},"modified":"2026-05-21T14:02:28","modified_gmt":"2026-05-21T05:02:28","slug":"3x3-matrix-determinant-calculation-methods-math-basics","status":"publish","type":"post","link":"https:\/\/lanqiu.aboutphlaw.com\/3x3\/3x3-matrix-determinant-calculation-methods-math-basics","title":{"rendered":"3&#215;3\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3059\u308bformula for determinant of 3&#215;3 matrix\uff08\u6570\u5b66\u306e\u57fa\u790e\u3092\u5b66\u3076\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\uff09"},"content":{"rendered":"<h4>\u76ee\u6b211<\/h4>\n<p>3&#215;3\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u306f\u3001\u7dda\u5f62\u4ee3\u6570\u306b\u304a\u3051\u308b\u57fa\u790e\u306e\u4e00\u90e8\u3067\u3042\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u5fdc\u7528\u304c\u671f\u5f85\u3067\u304d\u308b\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3059\u3002\u672c\u7a3f\u3067\u306f\u30013&#215;3\u884c\u5217\u306e\u884c\u5217\u5f0f\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306eformula for determinant of 3&#215;3 matrix\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u6b63\u3057\u304f\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u5f8c\u306e\u6570\u5b66\u306b\u304a\u3051\u308b\u69d8\u3005\u306a\u8907\u96d1\u306a\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u7b2c\u4e00\u6b69\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4>\u76ee\u6b212<\/h4>\n<p>3&#215;3\u884c\u5217\u306e\u884c\u5217\u5f0f\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u884c\u5217A\u304c\u4ee5\u4e0b\u306e\u5f62\u3067\u8868\u3055\u308c\u3066\u3044\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>A = |a11 a12 a13|<br \/>       |a21 a22 a23|<br \/>       |a31 a32 a33|<\/p>\n<p>\u3053\u306e\u884c\u5217\u306e\u884c\u5217\u5f0f\u306f\u3001\u6b21\u306e\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u8a08\u7b97\u3055\u308c\u307e\u3059<\/p>\n<p>det(A) = a11(a22a33 &#8211; a23a32) &#8211; a12(a21a33 &#8211; a23a31) + a13(a21a32 &#8211; a22a31)<\/p>\n<p>\u3053\u306e\u5f0f\u306f\u3001\u5404\u8981\u7d20\u3092\u7528\u3044\u3066\u4ed6\u306e\u8981\u7d20\u306e\u7a4d\u304b\u3089\u5f15\u304d\u7b97\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u884c\u5217\u306e\u884c\u5217\u5f0f\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>\u76ee\u6b213<\/h4>\n<p>\u884c\u5217\u5f0f\u306e\u6027\u8cea\u306b\u3064\u3044\u3066\u3082\u7406\u89e3\u3092\u6df1\u3081\u308b\u3079\u304d\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u884c\u5217\u5f0f\u306f\u3001\u884c\u5217\u304c\u9006\u884c\u5217\u3092\u6301\u3064\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u91cd\u8981\u306a\u6307\u6a19\u3068\u306a\u308a\u307e\u3059\u3002\u884c\u5217\u5f0f\u304c\u30bc\u30ed\u3067\u306a\u3044\u5834\u5408\u3001\u305d\u306e\u884c\u5217\u306f\u53ef\u9006\u3067\u3042\u308a\u3001\u9006\u884c\u5217\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001\u884c\u5217\u5f0f\u304c\u30bc\u30ed\u306e\u5834\u5408\u306f\u3001\u884c\u5217\u306f\u7dda\u5f62\u72ec\u7acb\u3067\u306a\u304f\u3001\u9006\u884c\u5217\u304c\u5b58\u5728\u3057\u307e\u305b\u3093\u3002\u3053\u306e\u7279\u6027\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u6570\u5b66\u306e\u8907\u96d1\u306a\u6982\u5ff5\u3092\u6271\u3046\u969b\u306b\u975e\u5e38\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h4>\u76ee\u6b214<\/h4>\n<p>\u5b9f\u969b\u306b3&#215;3\u884c\u5217\u306e\u884c\u5217\u5f0f\u3092\u8a08\u7b97\u3059\u308b\u969b\u3001\u5177\u4f53\u7684\u306a\u6570\u5024\u3092\u7528\u3044\u305f\u4f8b\u3092\u8003\u3048\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001\u6b21\u306e\u884c\u5217\u304c\u3042\u308b\u3068\u3057\u307e\u3059<\/p>\n<p>B = |1 2 3|<br \/>       |4 5 6|<br \/>       |7 8 9|<\/p>\n<p>\u3053\u306e\u884c\u5217\u306e\u884c\u5217\u5f0f\u306f\u3001\u4e0a\u8ff0\u306e\u5f0f\u306b\u5f53\u3066\u306f\u3081\u3066\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u8a08\u7b97\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u884c\u5217\u5f0f\u304c\u3069\u306e\u3088\u3046\u306b\u6c42\u3081\u3089\u308c\u308b\u304b\u3092\u5b9f\u969b\u306b\u898b\u3066\u3001\u7406\u89e3\u3092\u6df1\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h4>\u76ee\u6b215<\/h4>\n<p>\u6570\u5b66\u6559\u80b2\u306b\u304a\u3044\u3066\u3001\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u306f\u5b66\u751f\u306b\u3068\u3063\u3066\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u57fa\u790e\u7684\u306a\u6982\u5ff5\u3092\u3057\u3063\u304b\u308a\u3068\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u6570\u5b66\u7684\u601d\u8003\u3084\u554f\u984c\u89e3\u6c7a\u80fd\u529b\u3092\u80b2\u3080\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002formula for determinant of 3&#215;3 matrix\u306e\u5b66\u7fd2\u306f\u3001\u7dda\u5f62\u4ee3\u6570\u3092\u5b66\u3076\u4e0a\u3067\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u4eca\u5f8c\u306e\u5b66\u3073\u306b\u3064\u306a\u304c\u308b\u3088\u3046\u3001\u3057\u3063\u304b\u308a\u3068\u3057\u305f\u57fa\u790e\u3092\u7bc9\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30bf\u30a4\u30c8\u30eb3&#215;3\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3059\u308bformula for determinant of 3&#215;3 matrix\uff08\u6570\u5b66\u306e\u57fa\u790e\u3092\u5b66\u3076\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\uff09<\/p>\n","protected":false},"author":1,"featured_media":1159,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[17519,6053,3109],"class_list":["post-23414","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3x3","tag-3x3","tag-6053","tag-3109"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>3x3\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3059\u308bformula for determinant of 3x3 matrix\uff08\u6570\u5b66\u306e\u57fa\u790e\u3092\u5b66\u3076\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\uff09 - \u6700\u65b0\u30b9\u30dd\u30fc\u30c4\u30cb\u30e5\u30fc\u30b9 -\u30d0\u30b9\u30b1\u30c3\u30c8\u30dc\u30fc\u30eb\u306e\u30cb\u30e5\u30fc\u30b9- \u30b9\u30dd\u30fc\u30c4\u30a4\u30d9\u30f3\u30c8\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8-CSPORTS.JP<\/title>\n<meta name=\"description\" content=\"\u30bf\u30a4\u30c8\u30eb3x3\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3059\u308bformula for determinant of 3x3 matrix\uff08\u6570\u5b66\u306e\u57fa\u790e\u3092\u5b66\u3076\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\uff09\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lanqiu.aboutphlaw.com\/3x3\/3x3-matrix-determinant-calculation-methods-math-basics\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3x3\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3059\u308bformula for determinant of 3x3 matrix\uff08\u6570\u5b66\u306e\u57fa\u790e\u3092\u5b66\u3076\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\uff09 - \u6700\u65b0\u30b9\u30dd\u30fc\u30c4\u30cb\u30e5\u30fc\u30b9 -\u30d0\u30b9\u30b1\u30c3\u30c8\u30dc\u30fc\u30eb\u306e\u30cb\u30e5\u30fc\u30b9- \u30b9\u30dd\u30fc\u30c4\u30a4\u30d9\u30f3\u30c8\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8-CSPORTS.JP\" \/>\n<meta property=\"og:description\" content=\"\u30bf\u30a4\u30c8\u30eb3x3\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3059\u308bformula for determinant of 3x3 matrix\uff08\u6570\u5b66\u306e\u57fa\u790e\u3092\u5b66\u3076\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\uff09\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lanqiu.aboutphlaw.com\/3x3\/3x3-matrix-determinant-calculation-methods-math-basics\" \/>\n<meta property=\"og:site_name\" content=\"\u6700\u65b0\u30b9\u30dd\u30fc\u30c4\u30cb\u30e5\u30fc\u30b9 -\u30d0\u30b9\u30b1\u30c3\u30c8\u30dc\u30fc\u30eb\u306e\u30cb\u30e5\u30fc\u30b9- \u30b9\u30dd\u30fc\u30c4\u30a4\u30d9\u30f3\u30c8\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8-CSPORTS.JP\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-21T05:02:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lanqiu.aboutphlaw.com\/wp-content\/uploads\/2024\/10\/c470df95.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"940\" \/>\n\t<meta property=\"og:image:height\" content=\"644\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CSPORTS\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"CSPORTS\" \/>\n<script type=\"application\/ld+json\" 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for determinant of 3x3 matrix\uff08\u6570\u5b66\u306e\u57fa\u790e\u3092\u5b66\u3076\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\uff09 - \u6700\u65b0\u30b9\u30dd\u30fc\u30c4\u30cb\u30e5\u30fc\u30b9 -\u30d0\u30b9\u30b1\u30c3\u30c8\u30dc\u30fc\u30eb\u306e\u30cb\u30e5\u30fc\u30b9- \u30b9\u30dd\u30fc\u30c4\u30a4\u30d9\u30f3\u30c8\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8-CSPORTS.JP\",\"isPartOf\":{\"@id\":\"https:\/\/lanqiu.aboutphlaw.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/lanqiu.aboutphlaw.com\/3x3\/3x3-matrix-determinant-calculation-methods-math-basics#primaryimage\"},\"image\":{\"@id\":\"https:\/\/lanqiu.aboutphlaw.com\/3x3\/3x3-matrix-determinant-calculation-methods-math-basics#primaryimage\"},\"thumbnailUrl\":\"https:\/\/lanqiu.aboutphlaw.com\/wp-content\/uploads\/2024\/10\/inba.jpg\",\"datePublished\":\"2026-05-21T05:02:28+00:00\",\"dateModified\":\"2026-05-21T05:02:28+00:00\",\"description\":\"\u30bf\u30a4\u30c8\u30eb3x3\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3059\u308bformula for determinant of 3x3 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