\u5728PHP\u7f16\u7a0b\u4e2d\uff0ctanh()\u51fd\u6570\u662f\u4e00\u4e2a\u7528\u4e8e\u8ba1\u7b97\u53cc\u66f2\u6b63\u5207\u503c\u7684\u6570\u5b66\u51fd\u6570\u3002\u53cc\u66f2\u6b63\u5207\u51fd\u6570\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u5b66\u51fd\u6570\uff0c\u5b83\u5728\u7edf\u8ba1\u5b66\u3001\u7269\u7406\u5b66\u548c\u5de5\u7a0b\u5b66\u7b49\u9886\u57df\u4e2d\u7ecf\u5e38\u88ab\u4f7f\u7528\u3002<\/p>\n
\u8be5\u51fd\u6570\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
tanh(float $x): float\n<\/code><\/pre>\n\u53c2\u6570$x\u662f\u4e00\u4e2a\u6d6e\u70b9\u6570\uff0c\u8868\u793a\u8981\u8ba1\u7b97\u53cc\u66f2\u6b63\u5207\u503c\u7684\u89d2\u5ea6\uff08\u4ee5\u5f27\u5ea6\u4e3a\u5355\u4f4d\uff09\u3002\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u6d6e\u70b9\u6570\uff0c\u8868\u793a\u8ba1\u7b97\u5f97\u5230\u7684\u53cc\u66f2\u6b63\u5207\u503c\u3002<\/p>\n
\u793a\u4f8b<\/h2>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528tanh()\u51fd\u6570\u8ba1\u7b97\u53cc\u66f2\u6b63\u5207\u503c\u7684\u793a\u4f8b\uff1a<\/p>\n
<?php\n$x = 0.5;\n$tanhValue = tanh($x);\necho \"\u53cc\u66f2\u6b63\u5207\u503c\u4e3a\uff1a\" . $tanhValue;\n?>\n<\/code><\/pre>\n\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
\u53cc\u66f2\u6b63\u5207\u503c\u4e3a\uff1a0.46211715726001\n<\/code><\/pre>\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528tanh()\u51fd\u6570\u8ba1\u7b97\u4e860.5\u7684\u53cc\u66f2\u6b63\u5207\u503c\uff0c\u5e76\u5c06\u7ed3\u679c\u6253\u5370\u51fa\u6765\u3002<\/p>\n
\u5e94\u7528\u573a\u666f<\/h2>\n
tanh()\u51fd\u6570\u5728\u5f88\u591a\u9886\u57df\u4e2d\u90fd\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\uff1a<\/p>\n
\u795e\u7ecf\u7f51\u7edc<\/h3>\n
\u5728\u795e\u7ecf\u7f51\u7edc\u4e2d\uff0c\u53cc\u66f2\u6b63\u5207\u51fd\u6570\u5e38\u7528\u4e8e\u6fc0\u6d3b\u51fd\u6570\u3002\u6fc0\u6d3b\u51fd\u6570\u662f\u795e\u7ecf\u7f51\u7edc\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u5c06\u8f93\u5165\u4fe1\u53f7\u8f6c\u6362\u4e3a\u8f93\u51fa\u4fe1\u53f7\u3002\u53cc\u66f2\u6b63\u5207\u51fd\u6570\u7684\u8303\u56f4\u5728-1\u52301\u4e4b\u95f4\uff0c\u9002\u5408\u7528\u4e8e\u795e\u7ecf\u7f51\u7edc\u7684\u8f93\u51fa\u5c42\u548c\u9690\u85cf\u5c42\u3002<\/p>\n
\u6570\u636e\u9884\u5904\u7406<\/h3>\n
\u5728\u6570\u636e\u5206\u6790\u548c\u673a\u5668\u5b66\u4e60\u4e2d\uff0c\u53cc\u66f2\u6b63\u5207\u51fd\u6570\u5e38\u7528\u4e8e\u6570\u636e\u9884\u5904\u7406\u3002\u901a\u8fc7\u5bf9\u6570\u636e\u8fdb\u884c\u53cc\u66f2\u6b63\u5207\u53d8\u6362\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u7684\u8303\u56f4\u6620\u5c04\u5230-1\u52301\u4e4b\u95f4\uff0c\u6709\u52a9\u4e8e\u63d0\u9ad8\u6a21\u578b\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n
\u56fe\u50cf\u5904\u7406<\/h3>\n
\u5728\u56fe\u50cf\u5904\u7406\u4e2d\uff0c\u53cc\u66f2\u6b63\u5207\u51fd\u6570\u5e38\u7528\u4e8e\u8c03\u6574\u56fe\u50cf\u7684\u5bf9\u6bd4\u5ea6\u3002\u901a\u8fc7\u5bf9\u56fe\u50cf\u7684\u50cf\u7d20\u503c\u8fdb\u884c\u53cc\u66f2\u6b63\u5207\u53d8\u6362\uff0c\u53ef\u4ee5\u589e\u5f3a\u56fe\u50cf\u7684\u5bf9\u6bd4\u5ea6\uff0c\u4f7f\u5f97\u56fe\u50cf\u66f4\u52a0\u6e05\u6670\u548c\u9c9c\u660e\u3002<\/p>\n
\u603b\u7ed3<\/h2>\n
\u901a\u8fc7\u4f7f\u7528PHP\u7684tanh()\u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u65b9\u4fbf\u5730\u8ba1\u7b97\u53cc\u66f2\u6b63\u5207\u503c\u3002\u53cc\u66f2\u6b63\u5207\u51fd\u6570\u5728\u795e\u7ecf\u7f51\u7edc\u3001\u6570\u636e\u9884\u5904\u7406\u548c\u56fe\u50cf\u5904\u7406\u7b49\u9886\u57df\u4e2d\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u5982\u679c\u60a8\u5bf9\u8fd9\u4e2a\u51fd\u6570\u611f\u5174\u8da3\uff0c\u53ef\u4ee5\u5728PHP\u5b98\u65b9\u6587\u6863\u4e2d\u67e5\u627e\u66f4\u591a\u8be6\u7ec6\u7684\u4fe1\u606f\u548c\u793a\u4f8b\u3002<\/p>\n
\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h3>\n
\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\u540e\u6d6a\u4e91\u63d0\u4f9b\u9ad8\u6027\u80fd\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u4e3a\u60a8\u7684\u7f51\u7ad9\u548c\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7a33\u5b9a\u53ef\u9760\u7684\u6258\u7ba1\u670d\u52a1\u3002\u8bf7\u8bbf\u95eehttps:\/\/idc.net<\/a>\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"PHP\u51fd\u6570\uff1atanh \u5728PHP\u7f16\u7a0b\u4e2d\uff0ctanh()\u51fd\u6570\u662f\u4e00\u4e2a\u7528\u4e8e\u8ba1\u7b97\u53cc\u66f2\u6b63\u5207\u503c\u7684\u6570\u5b66\u51fd\u6570\u3002\u53cc\u66f2\u6b63\u5207\u51fd\u6570\u662f\u4e00\u79cd\u5e38 […]<\/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-217868","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217868","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=217868"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217868\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=217868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=217868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=217868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}