{"id":6602,"date":"2024-03-21T10:01:01","date_gmt":"2024-03-21T02:01:01","guid":{"rendered":""},"modified":"2024-03-21T10:01:01","modified_gmt":"2024-03-21T02:01:01","slug":"\u7b49\u5dee\u6570\u5217\u524dn\u9879\u548c\u516c\u5f0f\u8bc1\u660e","status":"publish","type":"post","link":"https:\/\/mushiming.com\/6602.html","title":{"rendered":"\u7b49\u5dee\u6570\u5217\u524dn\u9879\u548c\u516c\u5f0f\u8bc1\u660e"},"content":{"rendered":"<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display: none;\"> \n <path stroke-linecap=\"round\" d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"><\/path> \n<\/svg> <\/p>\n<h3 id=\"\u7b49\u5dee\u6570\u5217\u524dn\u9879\u548c\u516c\u5f0f\u8bc1\u660e\">\u7b49\u5dee\u6570\u5217\u524dn\u9879\u548c\u516c\u5f0f\u8bc1\u660e<\/h3>\n<dl>\n  \u7b49\u5dee\u6570\u5217 <\/p>\n<dd>\n   \u7b2c\u4e00\u9879\u4e3a a1\n <\/dd>\n<dd>\n   \u516c\u5dee\u4e3a d\n <\/dd>\n<dd>\n   \u5219\u524dn\u9879\u7684\u548c\u4e3a\uff1a<br \/>\n  <span class=\"MathJax_Preview\"><\/span> <\/p>\n<div class=\"MathJax_Display\" style=\"text-align: center;\">\n   <span class=\"MathJax\" id=\"MathJax-Element-89-Frame\"> <span class=\"math\" id=\"MathJax-Span-1747\" style=\"width: 12.269em; display: inline-block;\"><span style=\"display: inline-block; position: relative; width: 9.816em; height: 0px; font-size: 125%;\"><span style=\"position: absolute; clip: rect(1.816em 1000em 3.149em -0.424em); top: -2.717em; left: 0.003em;\"><span class=\"mrow\" id=\"MathJax-Span-1748\"><span class=\"mi\" id=\"MathJax-Span-1749\" style=\"font-family: MathJax_Math-italic;\">S<span style=\"display: inline-block; overflow: hidden; height: 1px; width: 0.056em;\"><\/span><\/span><span class=\"mi\" id=\"MathJax-Span-1750\" style=\"font-family: MathJax_Math-italic;\">n<\/span><span class=\"mo\" id=\"MathJax-Span-1751\" style=\"font-family: MathJax_Main; padding-left: 0.269em;\">=<\/span><span class=\"mo\" id=\"MathJax-Span-1752\" style=\"font-family: MathJax_Main; padding-left: 0.269em;\">[<\/span><span class=\"mo\" id=\"MathJax-Span-1753\" style=\"font-family: MathJax_Main;\">(<\/span><span class=\"mi\" id=\"MathJax-Span-1754\" style=\"font-family: MathJax_Math-italic;\">a<\/span><span class=\"mn\" id=\"MathJax-Span-1755\" style=\"font-family: MathJax_Main;\">1<\/span><span class=\"mo\" id=\"MathJax-Span-1756\" style=\"font-family: MathJax_Main; padding-left: 0.216em;\">+<\/span><span class=\"mi\" id=\"MathJax-Span-1757\" style=\"font-family: MathJax_Math-italic; padding-left: 0.216em;\">a<\/span><span class=\"mi\" id=\"MathJax-Span-1758\" style=\"font-family: MathJax_Math-italic;\">n<\/span><span class=\"mo\" id=\"MathJax-Span-1759\" style=\"font-family: MathJax_Main;\">)<\/span><span class=\"mo\" id=\"MathJax-Span-1760\" style=\"font-family: MathJax_Main; padding-left: 0.216em;\">\u2217<\/span><span class=\"mi\" id=\"MathJax-Span-1761\" style=\"font-family: MathJax_Math-italic; padding-left: 0.216em;\">n<\/span><span class=\"mo\" id=\"MathJax-Span-1762\" style=\"font-family: MathJax_Main;\">]<\/span><span class=\"texatom\" id=\"MathJax-Span-1763\"><span class=\"mrow\" id=\"MathJax-Span-1764\"><span class=\"mo\" id=\"MathJax-Span-1765\" style=\"font-family: MathJax_Main;\">\/<\/span><\/span><\/span><span class=\"mn\" id=\"MathJax-Span-1766\" style=\"font-family: MathJax_Main;\">2<\/span><\/span><span style=\"display: inline-block; width: 0px; height: 2.723em;\"><\/span><\/span><\/span><span style=\"border-left-width: 0.003em; border-left-style: solid; display: inline-block; overflow: hidden; width: 0px; height: 1.403em; vertical-align: -0.397em;\"><\/span><\/span> <\/span>\n  <\/div>\n<p>  <script type=\"math\/tex; mode=display\" id=\"MathJax-Element-89\">Sn = [ (a1 + an)*n ] \/ 2<\/script>\n <\/dd>\n<dd>\n   \u8bc1\u660e\u8fc7\u7a0b\u5982\u4e0b\uff1a\n <\/dd>\n<\/dl>\n<pre class=\"prettyprint\"><code class=\"language-python hljs \">Sn = a1 + (a1 + d) + ... + (a1 + (n-<span class=\"hljs-number\">1<\/span>)d)\nSn = an + (an - d) + ... + (an - (n-<span class=\"hljs-number\">1<\/span>)d)\n\u4e0a\u8fb9\u4e24\u5f0f\u76f8\u52a0\u5f97\u5230 <span class=\"hljs-number\">2<\/span>Sn = (a1 + an)*n\n\u5373 Sn = (a1 + an)*n \/ <span class=\"hljs-number\">2<\/span><\/code><\/pre>\n<p>\u82e5 a1 = 1, an = n\uff0c\u5219 <span class=\"MathJax_Preview\"><\/span><\/p>\n<div class=\"MathJax_Display\" style=\"text-align: center;\">\n <span class=\"MathJax\" id=\"MathJax-Element-90-Frame\"> <span class=\"math\" id=\"MathJax-Span-1767\" style=\"width: 9.069em; display: inline-block;\"><span style=\"display: inline-block; position: relative; width: 7.256em; height: 0px; font-size: 125%;\"><span style=\"position: absolute; clip: rect(1.656em 1000em 3.149em -0.424em); top: -2.717em; left: 0.003em;\"><span class=\"mrow\" id=\"MathJax-Span-1768\"><span class=\"mi\" id=\"MathJax-Span-1769\" style=\"font-family: MathJax_Math-italic;\">S<span style=\"display: inline-block; overflow: hidden; height: 1px; width: 0.056em;\"><\/span><\/span><span class=\"mi\" id=\"MathJax-Span-1770\" style=\"font-family: MathJax_Math-italic;\">n<\/span><span class=\"mo\" id=\"MathJax-Span-1771\" style=\"font-family: MathJax_Main; padding-left: 0.269em;\">=<\/span><span class=\"mo\" id=\"MathJax-Span-1772\" style=\"font-family: MathJax_Main; padding-left: 0.269em;\">(<\/span><span class=\"msubsup\" id=\"MathJax-Span-1773\"><span style=\"display: inline-block; position: relative; width: 1.069em; height: 0px;\"><span style=\"position: absolute; clip: rect(1.976em 1000em 2.723em -0.477em); top: -2.557em; left: 0.003em;\"><span class=\"mi\" id=\"MathJax-Span-1774\" style=\"font-family: MathJax_Math-italic;\">n<\/span><span style=\"display: inline-block; width: 0px; height: 2.563em;\"><\/span><\/span><span style=\"position: absolute; top: -2.931em; left: 0.643em;\"><span class=\"mn\" id=\"MathJax-Span-1775\" style=\"font-size: 70.7%; font-family: MathJax_Main;\">2<\/span><span style=\"display: inline-block; width: 0px; height: 2.509em;\"><\/span><\/span><\/span><\/span><span class=\"mo\" id=\"MathJax-Span-1776\" style=\"font-family: MathJax_Main; padding-left: 0.216em;\">+<\/span><span class=\"mi\" id=\"MathJax-Span-1777\" style=\"font-family: MathJax_Math-italic; padding-left: 0.216em;\">n<\/span><span class=\"mo\" id=\"MathJax-Span-1778\" style=\"font-family: MathJax_Main;\">)<\/span><span class=\"texatom\" id=\"MathJax-Span-1779\"><span class=\"mrow\" id=\"MathJax-Span-1780\"><span class=\"mo\" id=\"MathJax-Span-1781\" style=\"font-family: MathJax_Main;\">\/<\/span><\/span><\/span><span class=\"mn\" id=\"MathJax-Span-1782\" style=\"font-family: MathJax_Main;\">2<\/span><\/span><span style=\"display: inline-block; width: 0px; height: 2.723em;\"><\/span><\/span><\/span><span style=\"border-left-width: 0.003em; border-left-style: solid; display: inline-block; overflow: hidden; width: 0px; height: 1.537em; vertical-align: -0.397em;\"><\/span><\/span> <\/span>\n<\/div>\n<p><script type=\"math\/tex; mode=display\" id=\"MathJax-Element-90\">Sn = (n^2 + n)\/2<\/script> <\/p>\n","protected":false},"excerpt":{"rendered":"\u7b49\u5dee\u6570\u5217\u524dn\u9879\u548c\u516c\u5f0f\u8bc1\u660e\u7b49\u5dee\u6570\u5217\u524dn\u9879\u548c\u516c\u5f0f\u8bc1\u660e\u7b49\u5dee\u6570\u5217\u7b2c\u4e00\u9879\u4e3aa1\u516c\u5dee\u4e3ad\u5219\u524dn\u9879\u7684\u548c\u4e3a\uff1aSn=[(a1+an)\u2217n]\/2Sn=[(a1+an)*n]\/...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/6602"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=6602"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/6602\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=6602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=6602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=6602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}