{"id":20,"date":"2024-09-10T07:23:27","date_gmt":"2024-09-09T23:23:27","guid":{"rendered":"http:\/\/chaixiangyu.cn\/?p=20"},"modified":"2024-09-11T21:41:00","modified_gmt":"2024-09-11T13:41:00","slug":"armadillo%e4%bd%bf%e7%94%a8%e4%bb%8b%e7%bb%8d%ef%bc%88%e5%9b%9b%ef%bc%89%ef%bc%9a%e5%90%91%e9%87%8f%e5%88%9b%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/chaixiangyu.cn\/?p=20","title":{"rendered":"Armadillo\u4f7f\u7528\u4ecb\u7ecd\uff08\u56db\uff09\uff1a\u5411\u91cf\u521b\u5efa"},"content":{"rendered":"\n<p>\u521b\u5efa<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>vec v1 = \"1,2,3,4\";\nvec v2 = initializer_list &lt; double &gt; {1, 2, 3, 4};\n\nvec v3; \/\/\u5411\u91cf\u672a\u521d\u59cb\u5316\nv3 &lt;&lt; 1 &lt;&lt; 2 &lt;&lt; 3 &lt;&lt; 4;\n\nvec v4(v1);\ndouble *elem = new double&#91;4]{1, 2, 3, 4};\nvec v5(elem, 4); \/\/\u8fd9\u4e2a\u662f\u4eceelem\u6307\u9488\u6307\u5411\u7684\u5185\u5b58\u4e2d\u590d\u5236\u5143\u7d20\uff0c\u6240\u4ee5\u662f\u5b89\u5168\u7684\nvec v6(elem, 4, false);\n\/\/\u8fd9\u4e2a\u662f\u76f4\u63a5\u4f7f\u7528elem\u6307\u9488\u6240\u6307\u5411\u7684\u5185\u5b58\uff0c\u6240\u4ee5\u8981\u4fdd\u8bc1elem\u6240\u6307\u5411\u7684\u5185\u5b58\u5728v6\u7684\u751f\u547d\u671f\u5185\u6709\u6548\u4e14\u4e0d\u88ab\u5b83\u4eba\u4f7f\u7528\n\/\/\u800c\u4e14\u5411\u91cf\u7684\u5927\u5c0f\u4e0d\u80fd\u88ab\u76f4\u63a5\u6216\u95f4\u63a5\u6539\u53d8\nvec v7(elem, 4, false,false);\n\/\/\u8fd9\u4e2a\u662f\u76f4\u63a5\u4f7f\u7528elem\u6307\u9488\u6240\u6307\u5411\u7684\u5185\u5b58\uff0c\u6240\u4ee5\u8981\u4fdd\u8bc1elem\u6240\u6307\u5411\u7684\u5185\u5b58\u5728v6\u7684\u751f\u547d\u671f\u5185\u6709\u6548\u4e14\u4e0d\u88ab\u5b83\u4eba\u4f7f\u7528\n\/\/\u800c\u4e14\u5411\u91cf\u7684\u5927\u5c0f\u53ef\u4ee5\u91cd\u65b0\u8bbe\u5b9a\uff0c\u5927\u5c0f\u91cd\u65b0\u8bbe\u5b9a\u540e\u5c31\u4e0d\u4f7f\u7528elem\u6307\u5411\u7684\u5185\u5b58\u4e86\n\nvector&lt;double&gt; e = { 1, 2, 3, 4 };\nvec v8(e);\nmat m1 = \"1;2;3;4;\";\nvec v9(m1); \/\/\u5982\u679cm1\u4e0d\u662f\u5217\u5411\u91cf\uff0c\u5c06\u629b\u51fastd::logic_error\u5f02\u5e38\n\/\/\u4ee5\u4e0av1,v2...v9\u90fd\u662f\u76f8\u540c\u7684\u5217\u5411\u91cf\uff0c\u90fd\u4e3a\uff081\uff0c2\uff0c3\uff0c4\uff09T\n\nvec v10 = vec::fixed&lt;4&gt;();\n\/\/\u521b\u5efa\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u7684\u5411\u91cf\uff0c\u5e76\u4e14\u53ea\u8981\u521b\u5efa\u540e\u5411\u91cf\u7684\u5927\u5c0f\uff08\u5143\u7d20\u7684\u4e2a\u6570\uff09\u4e0d\u53ef\u4ee5\u6539\u53d8\u3002\n\/\/\u4f7f\u7528\u56fa\u5b9a\u5927\u5c0f\u7684\u5411\u91cf\u8fd0\u7b97\u901f\u5ea6\u5feb\u4e8e\u52a8\u6001\u5206\u914d\u7684\nvec v11 = vec::fixed&lt;4&gt;(\"1,2,3,4\");\nvec v12 = vec::fixed&lt;4&gt;();\nv12 &lt;&lt; 1 &lt;&lt; 2 &lt;&lt; 3 &lt;&lt; 4;\n\/\/...\u4ee5\u6b64\u7c7b\u63a8\uff0c\u4e4b\u524d\u4f7f\u7528\u7684\u51e0\u79cd\u6784\u9020\u51fd\u6570\u90fd\u53ef\u4ee5\u4f7f\u7528\n\n\/\/\u7279\u522b\u8981\u6307\u51fa\u5411\u91cf\u7684\u521d\u59cb\u7684\u586b\u5145\u6784\u9020\u51fd\u6570\nvec v13(4); \/\/\u8fd9\u4e2a\u521b\u5efa\u4e00\u4e2a4\u4e2a\u5143\u7d20\u7684\u5411\u91cf\nvec v14(4, fill::zeros); \/\/\u521b\u5efa\u4e00\u4e2a4\u4e2a\u5143\u7d20\u7684\u5411\u91cf\uff0c\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f0\nvec v15(4, fill::ones); \/\/\u521b\u5efa\u4e00\u4e2a4\u4e2a\u5143\u7d20\u7684\u5411\u91cf\uff0c\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f1\nvec v16(4, fill::randu); \/\/\u521b\u5efa\u4e00\u4e2a4\u4e2a\u5143\u7d20\u7684\u5411\u91cf\uff0c\u6bcf\u4e2a\u5143\u7d20\u662f&#91;0,1]\u4e4b\u95f4\u7684\u968f\u673a\u6570\nvec v17(4, fill::randn); \/\/\u521b\u5efa\u4e00\u4e2a4\u4e2a\u5143\u7d20\u7684\u5411\u91cf\uff0c\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f\u4ece\u4e00\u7ec4\u5e73\u5747\u503c\u4e3a0\uff0c\u65b9\u5dee\u4e3a1\u7684\u5448\u6b63\u6001\/\u9ad8\u65af\u5206\u5e03\u7684\u968f\u673a\u6570<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u521b\u5efa<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-20","post","type-post","status-publish","format-standard","hentry","category-algorithm"],"_links":{"self":[{"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=\/wp\/v2\/posts\/20","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20"}],"version-history":[{"count":1,"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=\/wp\/v2\/posts\/20\/revisions"}],"predecessor-version":[{"id":21,"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=\/wp\/v2\/posts\/20\/revisions\/21"}],"wp:attachment":[{"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chaixiangyu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}