{"id":13151,"date":"2026-02-02T16:02:24","date_gmt":"2026-02-02T07:02:24","guid":{"rendered":"https:\/\/lanqiu.aboutphlaw.com\/?p=13151"},"modified":"2026-02-02T16:02:24","modified_gmt":"2026-02-02T07:02:24","slug":"determinant-3x3-calculation-methods-and-applications","status":"publish","type":"post","link":"https:\/\/lanqiu.aboutphlaw.com\/3x3\/determinant-3x3-calculation-methods-and-applications","title":{"rendered":"\u884c\u5217\u5f0f 3×3\u306e\u8a08\u7b97\u65b9\u6cd5\u3068\u305d\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u306e\u6700\u65b0\u60c5\u5831\uff08\u6570\u5b66\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u554f\u984c\u307e\u3067\u89e3\u8aac\u3057\u307e\u3059\uff09"},"content":{"rendered":"

\u884c\u5217\u5f0f 3×3\u306e\u57fa\u790e\u77e5\u8b58<\/h4>\n

\u884c\u5217\u5f0f\u306f\u3001\u6570\u5b66\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3042\u308a\u3001\u7279\u306b\u7dda\u578b\u4ee3\u6570\u3084\u5fae\u5206\u65b9\u7a0b\u5f0f\u306e\u89e3\u6cd5\u306b\u304a\u3044\u3066\u6b20\u304b\u305b\u306a\u3044\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u884c\u5217\u5f0f 3×3\u306f\u30013\u00d73\u306e\u6b63\u65b9\u884c\u5217\u306b\u5bfe\u5fdc\u3059\u308b\u884c\u5217\u5f0f\u3067\u3001\u591a\u304f\u306e\u6570\u7406\u7684\u306a\u554f\u984c\u306e\u89e3\u6c7a\u7b56\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u306e\u884c\u5217\u5f0f\u3092\u6c42\u3081\u308b\u306b\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u5f93\u3044\u307e\u3059\u3002<\/p>\n

\u307e\u305a\u30013×3\u884c\u5217\u3092\u6b21\u306e\u3088\u3046\u306b\u8868\u73fe\u3057\u307e\u3059<\/p>\n

\u884c\u5217A = \\[\\beginbmatrix a_11 & a_12 & a_13 \\\\ a_21 & a_22 & a_23 \\\\ a_31 & a_32 & a_33 \\endbmatrix\\]<\/p>\n

\u884c\u5217\u5f0f 3×3\u3092\u6c42\u3081\u308b\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u516c\u5f0f\u3092\u7528\u3044\u307e\u3059<\/p>\n

\u884c\u5217\u5f0f(A) = a_11(a_22a_33 – a_23a_32) – a_12(a_21a_33 – a_23a_31) + a_13(a_21a_32 – a_22a_31)<\/p>\n

\u3053\u306e\u3088\u3046\u306b\u3001\u884c\u5217\u5f0f 3×3\u306f\u884c\u5217\u306e\u7279\u5b9a\u306e\u8981\u7d20\u3068\u305d\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u57fa\u3065\u3044\u3066\u8a08\u7b97\u3055\u308c\u3001\u305d\u306e\u5024\u306f\u884c\u5217\u306e\u9006\u884c\u5217\u306e\u6709\u7121\u3084\u3001\u7dda\u5f62\u72ec\u7acb\u6027\u306e\u5224\u65ad\u306b\u3082\u5bc4\u4e0e\u3057\u307e\u3059\u3002<\/p>\n

\u884c\u5217\u5f0f 3×3\u306e\u8a08\u7b97\u624b\u9806<\/h4>\n

\u884c\u5217\u5f0f 3×3\u3092\u5177\u4f53\u7684\u306b\u8a08\u7b97\u3059\u308b\u624b\u9806\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002\u307e\u305a\u3001\u884c\u5217\u306e\u5404\u8981\u7d20\u3092\u78ba\u8a8d\u3057\u3001\u8a08\u7b97\u306e\u305f\u3081\u306e\u30b9\u30ab\u30e9\u30fc\u91cf\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u884c\u5217\u306e\u884c\u3084\u5217\u3092\u9078\u629e\u3057\u3001\u305d\u3053\u304b\u3089\u30de\u30a4\u30ca\u30b9\u7b26\u53f7\u306b\u3088\u308b\u52a0\u6e1b\u7b97\u3092\u901a\u3058\u3066\u4ed6\u306e\u8981\u7d20\u3068\u306e\u95a2\u9023\u6027\u3092\u5206\u6790\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u8a08\u7b97\u3092\u7c21\u7565\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u884c\u5217\u306e\u9069\u5207\u306a\u5909\u5f62\u3092\u884c\u3046\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u3001\u5177\u4f53\u7684\u306a\u5024\u3092\u6301\u3064\u884c\u5217A\u306e\u884c\u5217\u5f0f\u3092\u8a08\u7b97\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

A = \\[\\beginbmatrix 1 & 2 & 3 \\\\ 4 & 5 & 6 \\\\ 7 & 8 & 9 \\endbmatrix\\]<\/p>\n

\u3053\u306e\u884c\u5217\u306b\u5bfe\u3057\u3066\u884c\u5217\u5f0f\u3092\u8a08\u7b97\u3059\u308b\u3068\u3001\u7d50\u679c\u306f0\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u884c\u5217\u304c\u7dda\u5f62\u4f9d\u5b58\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u304a\u308a\u3001\u9006\u884c\u5217\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u3053\u306e\u3088\u3046\u306a\u8a08\u7b97\u624b\u9806\u306f\u3001\u4ed6\u306e\u5927\u304d\u306a\u884c\u5217\u306b\u5bfe\u3057\u3066\u3082\u5c55\u958b\u53ef\u80fd\u3067\u3042\u308a\u3001\u5fdc\u7528\u306b\u5f79\u7acb\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u884c\u5217\u5f0f 3×3\u306e\u5fdc\u7528\u4f8b<\/h4>\n

\u884c\u5217\u5f0f 3×3\u306f\u3001\u6570\u5b66\u306e\u307f\u306a\u3089\u305a\u3001\u7269\u7406\u5b66\u3084\u5de5\u5b66\u306a\u3069\u306e\u5206\u91ce\u3067\u3082\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u529b\u306e\u5e73\u8861\u554f\u984c\u3001\u96fb\u6c17\u56de\u8def\u306e\u89e3\u6790\u3001\u307e\u305f\u306f\u6a5f\u68b0\u306e\u52d5\u529b\u5b66\u306b\u304a\u3044\u3066\u3001\u884c\u5217\u5f0f\u3092\u5229\u7528\u3057\u305f\u8a08\u7b97\u304c\u983b\u7e41\u306b\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n

Concrete\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u3057\u3066\u306f\u3001\u7269\u4f53\u306e\u56de\u8ee2\u3084\u53cd\u5c04\u3092\u8a08\u7b97\u3059\u308b\u969b\u306b\u5fc5\u8981\u306a\u7279\u6027\u3084\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u3092\u6c42\u3081\u308b\u904e\u7a0b\u3067\u884c\u5217\u5f0f 3×3\u306e\u5f79\u5272\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u6027\u5224\u5b9a\u306b\u3082\u884c\u5217\u5f0f\u304c\u7528\u3044\u3089\u308c\u3001\u7279\u306b\u5236\u5fa1\u7406\u8ad6\u306b\u304a\u3044\u3066\u30b7\u30b9\u30c6\u30e0\u306e\u6319\u52d5\u3092\u89e3\u6790\u3059\u308b\u969b\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n

\u884c\u5217\u5f0f\u306e\u8a08\u7b97\u306b\u304a\u3051\u308b\u6ce8\u610f\u70b9<\/h4>\n

\u884c\u5217\u5f0f 3×3\u306e\u8a08\u7b97\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u307e\u305a\u3001\u8a08\u7b97\u30df\u30b9\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u884c\u5217\u306e\u5404\u8981\u7d20\u3092\u6b63\u78ba\u306b\u8a18\u9332\u3059\u308b\u3053\u3068\u304c\u809d\u5fc3\u3067\u3059\u3002\u307e\u305f\u3001\u884c\u5217\u5f0f\u304c0\u306e\u5834\u5408\u306b\u306f\u3001\u884c\u5217\u304c\u7dda\u5f62\u4f9d\u5b58\u3067\u3042\u308b\u3053\u3068\u306b\u6c17\u4ed8\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u7dda\u5f62\u4f9d\u5b58\u6027\u306f\u3001\u591a\u6b21\u5143\u7a7a\u9593\u306b\u304a\u3051\u308b\u89e3\u306e\u975e\u4e00\u610f\u6027\u3092\u793a\u3059\u305f\u3081\u3001\u554f\u984c\u306e\u672c\u8cea\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n

\u3055\u3089\u306b\u3001\u884c\u5217\u306e\u5909\u5f62\u3092\u884c\u306a\u3046\u969b\u306f\u3001\u884c\u5217\u306e\u884c\u3084\u5217\u306e\u4ea4\u63db\u306b\u4f34\u3046\u7b26\u53f7\u306e\u5909\u5316\u3092\u5fc5\u305a\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u52b9\u7387\u7684\u306b\u8a08\u7b97\u3092\u9032\u3081\u306a\u304c\u3089\u3001\u7d50\u679c\u3092\u6b63\u78ba\u306b\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u672a\u6765\u306b\u5411\u3051\u305f\u884c\u5217\u5f0f\u306e\u7814\u7a76<\/h4>\n

\u884c\u5217\u5f0f 3×3\u306e\u7814\u7a76\u306f\u4eca\u5f8c\u3082\u6df1\u5316\u3057\u3066\u3044\u304f\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u7279\u306b\u3001AI\u3084\u6a5f\u68b0\u5b66\u7fd2\u306e\u767a\u5c55\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u306e\u6574\u7406\u3084\u51e6\u7406\u306b\u304a\u3044\u3066\u884c\u5217\u3084\u884c\u5217\u5f0f\u306e\u91cd\u8981\u6027\u304c\u5897\u3057\u3066\u3044\u307e\u3059\u3002\u6570\u5024\u89e3\u6790\u3084\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u51e6\u7406\u306e\u6587\u8108\u3067\u3082\u884c\u5217\u306e\u7279\u6027\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u3053\u306e\u5206\u91ce\u306e\u9032\u5c55\u306f\u8a08\u7b97\u65b9\u6cd5\u3084\u5fdc\u7528\u7bc4\u56f2\u3092\u5e83\u3052\u308b\u53ef\u80fd\u6027\u3092\u79d8\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u307e\u305f\u3001\u6559\u80b2\u73fe\u5834\u306b\u304a\u3044\u3066\u3082\u3001\u884c\u5217\u5f0f 3×3\u3092\u542b\u3080\u884c\u5217\u306e\u6271\u3044\u65b9\u3092\u52b9\u679c\u7684\u306b\u6559\u3048\u308b\u65b9\u6cd5\u304c\u6a21\u7d22\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5b66\u751f\u306b\u3068\u3063\u3066\u5206\u304b\u308a\u3084\u3059\u3044\u6559\u6750\u3084\u65b0\u305f\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u6c42\u3081\u3089\u308c\u3066\u304a\u308a\u3001\u4eca\u5f8c\u306e\u6570\u5b66\u6559\u80b2\u306b\u304a\u3051\u308b\u8ab2\u984c\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u884c\u5217\u5f0f 3×3\u306e\u8a08\u7b97\u65b9\u6cd5\u3068\u305d\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u306e\u6700\u65b0\u60c5\u5831<\/p>\n","protected":false},"author":1,"featured_media":1166,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[5510,6053,15219],"class_list":["post-13151","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3x3","tag-3x3","tag-6053","tag-15219"],"yoast_head":"\n\u884c\u5217\u5f0f 3x3\u306e\u8a08\u7b97\u65b9\u6cd5\u3068\u305d\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u306e\u6700\u65b0\u60c5\u5831\uff08\u6570\u5b66\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u554f\u984c\u307e\u3067\u89e3\u8aac\u3057\u307e\u3059\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=\"\u884c\u5217\u5f0f 3x3\u306e\u8a08\u7b97\u65b9\u6cd5\u3068\u305d\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u306e\u6700\u65b0\u60c5\u5831\" \/>\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\/determinant-3x3-calculation-methods-and-applications\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u884c\u5217\u5f0f 3x3\u306e\u8a08\u7b97\u65b9\u6cd5\u3068\u305d\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u306e\u6700\u65b0\u60c5\u5831\uff08\u6570\u5b66\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u554f\u984c\u307e\u3067\u89e3\u8aac\u3057\u307e\u3059\uff09 - \u6700\u65b0\u30b9\u30dd\u30fc\u30c4\u30cb\u30e5\u30fc\u30b9 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