{"id":2669,"date":"2023-11-14T14:26:31","date_gmt":"2023-11-14T06:26:31","guid":{"rendered":""},"modified":"2023-11-14T14:26:31","modified_gmt":"2023-11-14T06:26:31","slug":"JavaScript math","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/2669.html","title":{"rendered":"JavaScript math"},"content":{"rendered":"<div class=\"titlebox\">\n<h1>JavaScript math<\/h1>\n<\/div>\n<div class=\"desc\">\n <strong> JavaScript math<\/strong>\u5bf9\u8c61\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5e38\u6570\u548c\u6267\u884c\u6570\u5b66\u8fd0\u7b97\u7684\u65b9\u6cd5\u3002\u4e0edate\u5bf9\u8c61\u4e0d\u540c\uff0c\u5b83\u6ca1\u6709\u6784\u9020\u51fd\u6570\u3002\n<\/div>\n<h2 class=\" h2\"> JavaScript math\u65b9\u6cd5<\/h2>\n<div class=\"desc\">\n  \u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u5e26\u6709\u63cf\u8ff0\u7684JavaScript Math\u65b9\u6cd5\u5217\u8868\u3002\n<\/div>\n<table>\n<tbody>\n<tr>\n<td>\u65b9\u6cd5<\/td>\n<td>\u8bf4\u660e<\/td>\n<\/tr>\n<tr>\n<td> abs() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u7edd\u5bf9\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> acos() <\/td>\n<td>\u5b83\u4ee5\u5f27\u5ea6\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u53cd\u4f59\u5f26\u3002<\/td>\n<\/tr>\n<tr>\n<td> asin() <\/td>\n<td>\u5b83\u4ee5\u5f27\u5ea6\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u53cd\u6b63\u5f26\u3002<\/td>\n<\/tr>\n<tr>\n<td> atan() <\/td>\n<td>\u5b83\u4ee5\u5f27\u5ea6\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u53cd\u6b63\u5207\u3002<\/td>\n<\/tr>\n<tr>\n<td> cbrt() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u7acb\u65b9\u6839\u3002<\/td>\n<\/tr>\n<tr>\n<td> ceil() <\/td>\n<td>\u5b83\u8fd4\u56de\u4e00\u4e2a\u6700\u5c0f\u6574\u6570\u503c\uff0c\u5927\u4e8e\u6216\u7b49\u4e8e\u7ed9\u5b9a\u7684\u6570\u5b57\u3002<\/td>\n<\/tr>\n<tr>\n<td> cos() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u4f59\u5f26\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> cosh() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u53cc\u66f2\u4f59\u5f26\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> exp() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u6307\u6570\u5f62\u5f0f\u3002<\/td>\n<\/tr>\n<tr>\n<td> floor() <\/td>\n<td>\u5b83\u8fd4\u56de\u5c0f\u4e8e\u6216\u7b49\u4e8e\u7ed9\u5b9a\u6570\u5b57\u7684\u6700\u5927\u6574\u6570\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> hypot() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u5e73\u65b9\u548c\u7684\u5e73\u65b9\u6839\u3002<\/td>\n<\/tr>\n<tr>\n<td> log() <\/td>\n<td>\u5b83\u8fd4\u56de\u6570\u5b57\u7684\u81ea\u7136\u5bf9\u6570\u3002<\/td>\n<\/tr>\n<tr>\n<td> max() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u6700\u5927\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> min() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u6700\u5c0f\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> pow() <\/td>\n<td>\u5b83\u5c06base\u7684\u503c\u8fd4\u56de\u4e3a\u6307\u6570\u7684\u5e42\u3002<\/td>\n<\/tr>\n<tr>\n<td> random() <\/td>\n<td>\u5b83\u8fd4\u56de0(\u542b)\u548c1(\u4e0d\u542b)\u4e4b\u95f4\u7684\u968f\u673a\u6570\u3002<\/td>\n<\/tr>\n<tr>\n<td> round() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u6700\u63a5\u8fd1\u7684\u6574\u6570\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> sign() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u7b26\u53f7<\/td>\n<\/tr>\n<tr>\n<td> sin() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u6b63\u5f26\u3002<\/td>\n<\/tr>\n<tr>\n<td> sinh() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u53cc\u66f2\u6b63\u5f26\u3002<\/td>\n<\/tr>\n<tr>\n<td> sqrt() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u5e73\u65b9\u6839<\/td>\n<\/tr>\n<tr>\n<td> tan() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u5207\u7ebf\u3002<\/td>\n<\/tr>\n<tr>\n<td> tanh() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u53cc\u66f2\u6b63\u5207\u3002<\/td>\n<\/tr>\n<tr>\n<td> trunc() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u6574\u6570\u90e8\u5206\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 class=\" h2\"> Math.sqrt(n)<\/h2>\n<div class=\"desc\">\n  JavaScript math.sqrt(n)\u65b9\u6cd5\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u5e73\u65b9\u6839\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> 17\u7684\u5e73\u65b9\u6839\u662f\uff1a &lt;span id=\"p1\"&gt;&lt;\/span&gt; <br> &lt;script&gt; <br> document.<span class=\"mediumblue\">getElementById<\/span>('p1').<span class=\"mediumblue\">innerHTML=Math.sqrt<\/span>(17); <br> &lt;\/script&gt; <br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n  17\u7684\u5e73\u65b9\u6839\u662f\uff1a<br \/>\n <span id=\"p1\"> <\/span><br \/>\n <script>\n                    document.getElementById('p1').innerHTML = Math.sqrt(17);\n                    <\/script>\n<\/div>\n<h2 class=\" h2\"> Math.random()<\/h2>\n<div class=\"desc\">\n  JavaScript math.random()\u65b9\u6cd5\u8fd4\u56de0\u52301\u4e4b\u95f4\u7684\u968f\u673a\u6570\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> \u968f\u673a\u6570\u4e3a\uff1a&lt;span id=\"p2\"&gt;&lt;\/span&gt; <br> &lt;script&gt; <br> document.<span class=\"mediumblue\">getElementById<\/span>('p2').<span class=\"mediumblue\">innerHTML=Math.random<\/span>(); <br> &lt;\/script&gt; <br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n  \u968f\u673a\u6570\u4e3a\uff1a<br \/>\n <span id=\"p2\"> <\/span><br \/>\n <script>\n                    document.getElementById('p2').innerHTML = Math.random();\n                    <\/script>\n<\/div>\n<h2 class=\" h2\"> Math.pow(m\uff0cn)<\/h2>\n<div class=\"desc\">\n  JavaScript math.pow(m\uff0cn)\u65b9\u6cd5\u5c06m\u8fd4\u56den\u7684\u5e42\uff0c\u5373m &lt; sup&gt; n \u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> 3\u76844\u6b21\u5e42\u662f\uff1a&lt;span id=\"p3\"&gt;&lt;\/span&gt; <br> &lt;script&gt; <br> document.<span class=\"mediumblue\">getElementById<\/span>('p3').<span class=\"mediumblue\">innerHTML=Math.pow<\/span>(3,4); <br> &lt;\/script&gt; <br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n  3\u76844\u6b21\u5e42\u662f\uff1a<br \/>\n <span id=\"p3\"> <\/span><br \/>\n <script>\n                    document.getElementById('p3').innerHTML = Math.pow(3, 4);\n                    <\/script>\n<\/div>\n<h2 class=\" h2\"> Math.floor(n)<\/h2>\n<div class=\"desc\">\n  JavaScript math.floor(n)\u65b9\u6cd5\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u6700\u5c0f\u6574\u6570\u3002\u4f8b\u59823.7\u8868\u793a3\uff0c5.9\u8868\u793a5\u7b49\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> \u8fd4\u56de4.6\u6700\u5c0f\u6574\u6570\u4e3a\uff1a &lt;span id=\"p4\"&gt;&lt;\/span&gt; <br> &lt;script&gt; <br> document.<span class=\"mediumblue\">getElementById<\/span>('p4').<span class=\"mediumblue\">innerHTML=Math.floor<\/span>(4.6); <br> &lt;\/script&gt; <br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n  \u8fd4\u56de4.6\u6700\u5c0f\u6574\u6570\u4e3a\uff1a<br \/>\n <span id=\"p4\"> <\/span><br \/>\n <script>\n                    document.getElementById('p4').innerHTML = Math.floor(4.6);\n                    <\/script>\n<\/div>\n<h2 class=\" h2\"> Math.ceil(n)<\/h2>\n<div class=\"desc\">\n  JavaScript math.ceil(n)\u65b9\u6cd5\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u6700\u5927\u6574\u6570\u3002\u4f8b\u59823.7\u8868\u793a4\uff0c5.9\u8868\u793a6\u7b49\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> \u8fd4\u56de4.6\u6700\u5927\u6574\u6570\u4e3a\uff1a &lt;span id=\"p5\"&gt;&lt;\/span&gt; <br> &lt;script&gt; <br> document.<span class=\"mediumblue\">getElementById<\/span>('p5').<span class=\"mediumblue\">innerHTML=Math.ceil<\/span>(4.6); <br> &lt;\/script&gt; <br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n  \u8fd4\u56de4.6\u6700\u5927\u6574\u6570\u4e3a\uff1a<br \/>\n <span id=\"p5\"> <\/span><br \/>\n <script>\n                    document.getElementById('p5').innerHTML = Math.ceil(4.6);\n                    <\/script>\n<\/div>\n<h2 class=\" h2\"> Math.round(n)<\/h2>\n<div class=\"desc\">\n  JavaScript math.round(n)\u65b9\u6cd5\u8fd4\u56de\u6700\u63a5\u8fd1\u7ed9\u5b9a\u6570\u5b57\u7684\u820d\u5165\u6574\u6570\u3002\u5982\u679c\u5c0f\u6570\u90e8\u5206\u7b49\u4e8e\u6216\u5927\u4e8e0.5\uff0c\u5219\u53d8\u4e3a\u4e0a\u9650\u503c1\uff0c\u5426\u5219\u53d8\u4e3a\u4e0b\u9650\u503c0\u3002\u4f8b\u59823.7\u76844\u30013.3\u76843\u30015.9\u76846\u7b49\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> 4.3\u56db\u820d\u4e94\u5165\u4e3a\uff1a &lt;span id=\"p6\"&gt;&lt;\/span&gt;&lt;br&gt; <br> 4.7\u56db\u820d\u4e94\u5165\u4e3a\uff1a &lt;span id=\"p7\"&gt;&lt;\/span&gt; <br> &lt;script&gt; <br> document.<span class=\"mediumblue\">getElementById<\/span>('p6').<span class=\"mediumblue\">innerHTML=Math.round<\/span>(4.3); <br> document.<span class=\"mediumblue\">getElementById<\/span>('p7').<span class=\"mediumblue\">innerHTML=Math.round<\/span>(4.7); <br> &lt;\/script&gt; <br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n  4.3\u56db\u820d\u4e94\u5165\u4e3a\uff1a<br \/>\n <span id=\"p6\"> <\/span><br \/>\n <br \/> 4.7\u56db\u820d\u4e94\u5165\u4e3a\uff1a<br \/>\n <span id=\"p7\"> <\/span><br \/>\n <script>\n                    document.getElementById('p6').innerHTML = Math.round(4.3);\n                    document.getElementById('p7').innerHTML = Math.round(4.7);\n                    <\/script>\n<\/div>\n<h2 class=\" h2\"> Math.abs(n)<\/h2>\n<div class=\"desc\">\n  JavaScript math.abs(n)\u65b9\u6cd5\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u7684\u7edd\u5bf9\u503c\u3002\u4f8b\u5982-4\u4ee3\u88684\uff0c6.6\u4ee3\u8868-6.6\u7b49\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> -4\u7684\u7edd\u5bf9\u503c\u4e3a\uff1a &lt;span id=\"p8\"&gt;&lt;\/span&gt; <br> &lt;script&gt; <br> document.<span class=\"mediumblue\">getElementById<\/span>('p8').<span class=\"mediumblue\">innerHTML=Math.abs<\/span>(-4); <br> &lt;\/script&gt; <br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n  -4\u7684\u7edd\u5bf9\u503c\u4e3a\uff1a<br \/>\n <span id=\"p8\"> <\/span><br \/>\n <script>\n                    document.getElementById('p8').innerHTML = Math.abs(-4);\n                    <\/script>\n<\/div>\n","protected":false},"excerpt":{"rendered":"JavaScript mathzh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179],"tags":[],"class_list":["post-2669","post","type-post","status-publish","format-standard","hentry","category-javascript-jc"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2669"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=2669"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2669\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=2669"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=2669"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=2669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}