{"id":217861,"date":"2023-12-23T01:29:29","date_gmt":"2023-12-22T17:29:29","guid":{"rendered":"https:\/\/www.idc.net\/help\/217861\/"},"modified":"2023-12-23T01:29:29","modified_gmt":"2023-12-22T17:29:29","slug":"php%e5%87%bd%e6%95%b0%ef%bc%9atan","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/217861\/","title":{"rendered":"PHP\u51fd\u6570\uff1atan"},"content":{"rendered":"<h1 id=\"php%e5%87%bd%e6%95%b0%ef%bc%9atan-orjbdwTOrv\">PHP\u51fd\u6570\uff1atan<\/h1>\n<p>\u5728PHP\u4e2d\uff0ctan()\u51fd\u6570\u7528\u4e8e\u8fd4\u56de\u4e00\u4e2a\u89d2\u5ea6\u7684\u6b63\u5207\u503c\u3002\u6b63\u5207\u503c\u662f\u4e00\u4e2a\u4e09\u89d2\u51fd\u6570\uff0c\u8868\u793a\u4e00\u4e2a\u89d2\u7684\u5bf9\u8fb9\u4e0e\u90bb\u8fb9\u7684\u6bd4\u503c\u3002<\/p>\n<h2 id=\"%e8%af%ad%e6%b3%95-orjbdwTOrv\">\u8bed\u6cd5<\/h2>\n<p>tan(angle)<\/p>\n<h2 id=\"%e5%8f%82%e6%95%b0-orjbdwTOrv\">\u53c2\u6570<\/h2>\n<p>angle\uff1a\u5fc5\u9700\uff0c\u8868\u793a\u4e00\u4e2a\u89d2\u7684\u5f27\u5ea6\u6216\u89d2\u5ea6\u3002<\/p>\n<h2 id=\"%e8%bf%94%e5%9b%9e%e5%80%bc-orjbdwTOrv\">\u8fd4\u56de\u503c<\/h2>\n<p>tan()\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u89d2\u7684\u6b63\u5207\u503c\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-orjbdwTOrv\">\u793a\u4f8b<\/h2>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528tan()\u51fd\u6570\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>&lt;?php\n$angle = 45;\n$tanValue = tan(deg2rad($angle));\necho \"\u89d2\u5ea6 \" . $angle . \" \u7684\u6b63\u5207\u503c\u662f\uff1a\" . $tanValue;\n?&gt;\n<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n<pre><code>\u89d2\u5ea6 45 \u7684\u6b63\u5207\u503c\u662f\uff1a1\n<\/code><\/pre>\n<h2 id=\"%e8%af%b4%e6%98%8e-orjbdwTOrv\">\u8bf4\u660e<\/h2>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u5c06\u89d2\u5ea6\u8f6c\u6362\u4e3a\u5f27\u5ea6\uff0c\u7136\u540e\u4f7f\u7528tan()\u51fd\u6570\u8ba1\u7b97\u6b63\u5207\u503c\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u89d2\u5ea6\u4e3a45\u5ea6\uff0c\u5bf9\u5e94\u7684\u5f27\u5ea6\u4e3a\u03c0\/4\u3002tan(\u03c0\/4)\u7684\u503c\u4e3a1\uff0c\u56e0\u6b64\u8f93\u51fa\u7ed3\u679c\u4e3a1\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0ctan()\u51fd\u6570\u63a5\u53d7\u7684\u53c2\u6570\u53ef\u4ee5\u662f\u5f27\u5ea6\u6216\u89d2\u5ea6\u3002\u5982\u679c\u53c2\u6570\u662f\u89d2\u5ea6\uff0c\u5219\u9700\u8981\u4f7f\u7528deg2rad()\u51fd\u6570\u5c06\u89d2\u5ea6\u8f6c\u6362\u4e3a\u5f27\u5ea6\u3002<\/p>\n<h2 id=\"%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af-orjbdwTOrv\">\u5e94\u7528\u573a\u666f<\/h2>\n<p>tan()\u51fd\u6570\u5728\u5f88\u591a\u6570\u5b66\u548c\u79d1\u5b66\u8ba1\u7b97\u4e2d\u90fd\u6709\u5e94\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\uff1a<\/p>\n<h3 id=\"%e4%b8%89%e8%a7%92%e5%bd%a2%e8%ae%a1%e7%ae%97-orjbdwTOrv\">\u4e09\u89d2\u5f62\u8ba1\u7b97<\/h3>\n<p>\u5728\u4e09\u89d2\u5f62\u8ba1\u7b97\u4e2d\uff0c\u6b63\u5207\u503c\u53ef\u4ee5\u7528\u4e8e\u8ba1\u7b97\u89d2\u5ea6\u7684\u5bf9\u8fb9\u957f\u5ea6\u3002\u901a\u8fc7\u5df2\u77e5\u7684\u89d2\u5ea6\u548c\u90bb\u8fb9\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528tan()\u51fd\u6570\u8ba1\u7b97\u5bf9\u8fb9\u7684\u957f\u5ea6\u3002<\/p>\n<h3 id=\"%e5%9b%be%e5%bd%a2%e7%bb%98%e5%88%b6-orjbdwTOrv\">\u56fe\u5f62\u7ed8\u5236<\/h3>\n<p>\u5728\u56fe\u5f62\u7ed8\u5236\u4e2d\uff0c\u6b63\u5207\u503c\u53ef\u4ee5\u7528\u4e8e\u8ba1\u7b97\u7ebf\u6761\u7684\u659c\u7387\u3002\u901a\u8fc7\u5df2\u77e5\u7684\u89d2\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528tan()\u51fd\u6570\u8ba1\u7b97\u7ebf\u6761\u7684\u659c\u7387\uff0c\u4ece\u800c\u786e\u5b9a\u7ebf\u6761\u7684\u65b9\u5411\u548c\u503e\u659c\u7a0b\u5ea6\u3002<\/p>\n<h3 id=\"%e7%89%a9%e7%90%86%e5%ad%a6-orjbdwTOrv\">\u7269\u7406\u5b66<\/h3>\n<p>\u5728\u7269\u7406\u5b66\u4e2d\uff0c\u6b63\u5207\u503c\u53ef\u4ee5\u7528\u4e8e\u8ba1\u7b97\u529b\u7684\u5206\u89e3\u3002\u901a\u8fc7\u5df2\u77e5\u7684\u529b\u7684\u5927\u5c0f\u548c\u89d2\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528tan()\u51fd\u6570\u8ba1\u7b97\u529b\u5728\u6c34\u5e73\u548c\u5782\u76f4\u65b9\u5411\u4e0a\u7684\u5206\u91cf\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-orjbdwTOrv\">\u603b\u7ed3<\/h2>\n<p>tan()\u51fd\u6570\u662fPHP\u4e2d\u7528\u4e8e\u8ba1\u7b97\u89d2\u5ea6\u6b63\u5207\u503c\u7684\u51fd\u6570\u3002\u5b83\u53ef\u4ee5\u63a5\u53d7\u5f27\u5ea6\u6216\u89d2\u5ea6\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u89d2\u7684\u6b63\u5207\u503c\u3002\u5728\u4e09\u89d2\u5f62\u8ba1\u7b97\u3001\u56fe\u5f62\u7ed8\u5236\u548c\u7269\u7406\u5b66\u7b49\u9886\u57df\u4e2d\uff0ctan()\u51fd\u6570\u90fd\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u3002<\/p>\n<h3 id=\"%e9%a6%99%e6%b8%af%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%a6%96%e9%80%89%e5%90%8e%e6%b5%aa%e4%ba%91-orjbdwTOrv\">\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h3>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u53ef\u9760\u7684\u9999\u6e2f\u670d\u52a1\u5668\u63d0\u4f9b\u5546\uff0c\u540e\u6d6a\u4e91\u662f\u60a8\u7684\u9996\u9009\u3002\u6211\u4eec\u63d0\u4f9b\u9ad8\u6027\u80fd\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u786e\u4fdd\u60a8\u7684\u7f51\u7ad9\u548c\u5e94\u7528\u7a0b\u5e8f\u59cb\u7ec8\u4fdd\u6301\u7a33\u5b9a\u548c\u53ef\u9760\u3002<\/p>\n<p>\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u6211\u4eec\u7684\u9999\u6e2f\u670d\u52a1\u5668\u4ea7\u54c1\uff0c\u8bf7\u8bbf\u95ee\u6211\u4eec\u7684\u5b98\u7f51\uff1a<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u51fd\u6570\uff1atan \u5728PHP\u4e2d\uff0ctan()\u51fd\u6570\u7528\u4e8e\u8fd4\u56de\u4e00\u4e2a\u89d2\u5ea6\u7684\u6b63\u5207\u503c\u3002\u6b63\u5207\u503c\u662f\u4e00\u4e2a\u4e09\u89d2\u51fd\u6570\uff0c\u8868\u793a\u4e00\u4e2a\u89d2\u7684\u5bf9\u8fb9 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[197851],"tags":[],"class_list":["post-217861","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=217861"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217861\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=217861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=217861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=217861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}