{"id":11714,"date":"2024-06-10T13:16:34","date_gmt":"2024-06-10T04:16:34","guid":{"rendered":"https:\/\/blogs.mathworks.com\/japan-community\/?p=11714"},"modified":"2024-06-10T13:16:34","modified_gmt":"2024-06-10T04:16:34","slug":"paged-matrix-functions-in-matlab-2024-edition-jp","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/japan-community\/2024\/06\/10\/paged-matrix-functions-in-matlab-2024-edition-jp\/","title":{"rendered":"\u30da\u30fc\u30b8\u5358\u4f4d\u306e\u884c\u5217\u51e6\u7406\u95a2\u6570\u3067\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7 (2024 \u5e74\u7248)"},"content":{"rendered":"
\u203b\u3053\u306e\u6295\u7a3f\u306f 2024 \u5e74 5 \u6708 29 \u65e5\u306b The MATLAB Blog \u3078 \u6295\u7a3f<\/a>\u3055\u308c\u305f\u3082\u306e\u306e\u6284\u8a33\u3067\u3059\u3002<\/div>\n
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Loren Shure\u304c MATLAB \u3067\u521d\u3081\u3066\u306e\u30da\u30fc\u30b8\u5358\u4f4d\u51e6\u7406\u306e\u884c\u5217\u95a2\u6570\u3092\u7d39\u4ecb\u3059\u308b\u8a18\u4e8b<\/a>\u3092\u6295\u7a3f\u3057\u305f\u306e\u304c 2021 \u5e74\u3002\u30da\u30fc\u30b8\u5358\u4f4d\u51e6\u7406\u306e\u884c\u5217\u4e57\u7b97\u3067\u3042\u308bpagemtimes<\/a>\u3001\u8ee2\u7f6e pagetranspose<\/a>\u3001\u305d\u3057\u3066\u8907\u7d20\u5171\u5f79\u8ee2\u7f6e\u306e pagectranspose<\/a> \u304c\u7d39\u4ecb\u3055\u308c\u3001\u3053\u308c\u3089\u306f\u3059\u3079\u3066 MATLAB R2020b \u3067\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<\/div>\n
\u4ee5\u4e0b\u306e\u56f3\u3067\u8996\u899a\u5316\u3057\u3066\u307f\u307e\u3059\u3002\u5404 3D \u914d\u5217\u306f\u3001\u4e00\u9023\u306e\u884c\u5217\uff08\u307e\u305f\u306f\u30da\u30fc\u30b8\uff09\u3068\u898b\u306a\u3055\u308c\u307e\u3059\u3002<\/div>\n
\"\"<\/div>\n
\u4f8b\u3048\u3070 A \u3068 B \u306f\u3001\u305d\u308c\u305e\u308c 3\u00d73 \u30b5\u30a4\u30ba\u306e\u884c\u5217\u304c3D\u65b9\u5411\u306b100,000 \u500b\u3042\u308b\u3068\u60f3\u50cf\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306e\u5404\u30da\u30a2\u3092\u4e57\u7b97\u3057\u3066 3D \u914d\u5217 C \u3092\u5f62\u6210\u3057\u305f\u3044\u3068\u3057\u307e\u3059\u3002<\/span>\u3053\u3061\u3089\u304c\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u305f\u53e4\u3044\u65b9\u6cd5\u3067\u3059\u3002<\/div>\n
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A = rand(3,3,100000);<\/span><\/div>\n<\/div>\n
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B = rand(3,3,100000);<\/span><\/div>\n<\/div>\n
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C = zeros(3,3,100000); % preallocate the results<\/span><\/span><\/div>\n<\/div>\n
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<\/div>\n<\/div>\n
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tic<\/span><\/div>\n<\/div>\n
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for <\/span>i=1:100000<\/span><\/div>\n<\/div>\n
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\u00a0\u00a0\u00a0\u00a0C(:,:,i) = A(:,:,i) * B(:,:,i);<\/span><\/div>\n<\/div>\n
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end<\/span><\/span><\/div>\n<\/div>\n
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loopTime = toc<\/span><\/div>\n
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loopTime = <\/span> 0.156962100000000<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\u305d\u3057\u3066\u3092 pagemtimes <\/span>\u4f7f\u3046\u3068<\/div>\n
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tic<\/span><\/div>\n<\/div>\n
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C1 = pagemtimes(A,B);<\/span><\/div>\n<\/div>\n
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pagedTime = toc<\/span><\/div>\n
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pagedTime = <\/span> 0.003961600000000<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\u51e6\u7406\u6642\u9593\u306f\u305a\u3063\u3068\u901f\u304f\u306a\u308a\u307e\u3059\u3002<\/div>\n
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fprintf(“The pagemtimes version is %f times faster than the loop\\n”<\/span>,loopTime\/pagedTime)<\/span><\/div>\n
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The pagemtimes version is 39.620886 times faster than the loop<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u7d50\u69cb\u306a\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u3067\u3059\u306d\u3002\u5b9f\u969b\u3001\u3053\u306e\u4f8b\u306f\u5f8c\u307b\u3069\u8aac\u660e\u3059\u308b\u7406\u7531\u304b\u3089\u3001 pagemtimes<\/span> \u306b\u671f\u5f85\u3067\u304d\u308b\u6700\u5927\u306e\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u3092\u793a\u3059\u305f\u3081\u306b\u9078\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n

\u30da\u30fc\u30b8\u5358\u4f4d\u51e6\u7406\u306e\u884c\u5217\u95a2\u6570\u306e\u30a2\u30a4\u30c7\u30a2\u306f\u3001\u4eba\u6c17\u304c\u3042\u308a\u3001\u5f79\u7acb\u3064\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\uff01MathWorks \u3067\u306f\u3001\u79c1\u305f\u3061\u306e\u88fd\u54c1\u5168\u4f53\u3068\u30e6\u30fc\u30b6\u30fc\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u306e\u3092\u898b\u304b\u3051\u307e\u3057\u305f\u3057\u3001\u3055\u3089\u306b\u3044\u304f\u3064\u304b\u306e\u5909\u7a2e\u306b\u3064\u3044\u3066\u8981\u671b\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u30da\u30fc\u30b8\u5358\u4f4d\u51e6\u7406\u306e\u884c\u5217\u4e57\u7b97\u306f\u7d20\u6674\u3089\u3057\u3044\u30b9\u30bf\u30fc\u30c8\u3067\u3001\u30da\u30fc\u30b8\u5358\u4f4d\u51e6\u7406\u306e SVD\u3001\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3001eig \u306a\u3069\u3082\u6b32\u3057\u3044\u3068\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u3002MathWorks \u306e\u958b\u767a\u30c1\u30fc\u30e0\u306f\u305d\u308c\u3089\u3092\u5b9f\u73fe\u3057\u307e\u3057\u305f\uff01<\/p>\n

\u305d\u308c\u3067\u306f\u3001R2024a \u6642\u70b9\u3067\u306e\u30da\u30fc\u30b8\u5358\u4f4d\u306e\u884c\u5217\u95a2\u6570\u306e\u73fe\u72b6\u3092\u3082\u3046\u5c11\u3057\u8a73\u3057\u304f\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n

MATLAB\u306b\u304a\u3051\u308b\u30da\u30fc\u30b8\u5358\u4f4d\u51e6\u7406\u306e\u884c\u5217\u95a2\u6570\u30ea\u30b9\u30c8<\/h2>\n
\u4ee5\u4e0b\u304c MATLAB \u306b\u3042\u308b\u30da\u30fc\u30b8\u5358\u4f4d\u306e\u884c\u5217\u95a2\u6570\u306e\u30ea\u30b9\u30c8\u3068\u3001\u305d\u308c\u3089\u304c\u5c0e\u5165\u3055\u308c\u305f\u6642\u671f\u3067\u3059\u3002<\/div>\n