72\u6cd5\u5219
\n\u5047\u8bbe\u4ee5\u5e74\u5229\u7387r%\u6295\u8d44\u4e00\u7b14\u94b1y\u5e74\uff0c\u5982\u679cr*y=72,\u90a3\u4e48\u4f60\u7684\u6295\u8d44\u5dee\u4e0d\u591a\u4f1a\u7ffb\u500d\u3002
\n\u5373\uff1a\u589e\u957f\u7387\u4e58\u4ee5\u589e\u957f\u6b21\u6570\u82e5\u4e3a72\uff0c\u90a3\u4e48\u6570\u5b57\u7ffb\u500d\u3002
\n\u539f\u7406\uff1a\uff081+ x\uff09\u7684y\u6b21\u65b9 = 2
\ny= ln2 \/ ln(1+x) ; ln2 = 0.69, ln(1+x) = x (\u6cf0\u52d2\u516c\u5f0f),
\n\u6545\u6709\uff1ay= 0.69\/x \u5373\uff1axy = 0.69 , 0.69\u4e0d\u6613\u4f30\u7b97\uff0c\u6362\u621070,72\u3002\u4e4b\u6240\u4ee5\u9009\u752872\uff0c\u662f\u56e0\u4e3a\u5b83\u6709\u8f83\u591a\u56e0\u6570\uff0c\u5bb9\u6613\u88ab\u6574\u9664\uff0c\u66f4\u65b9\u4fbf\u8ba1\u7b97\u3002\u5b83\u7684\u56e0\u6570\u67091\u30012\u30013\u30014\u30016\u30018\u30019\u300112\u548c\u5b83\u672c\u8eab\u3002<\/p>\n
\u5177\u4f53\u4f8b\u5b50\uff1a<\/p>\n
\u4ee5\u5e74\u5229\u73876%\u6295\u8d441000\u7f8e\u514312\u5e74\uff0c\u53ef\u5f97\u5230\u7ea62000\u7f8e\u5143\uff08\u5b9e\u9645\u6570\u5b57\u662f2012\u7f8e\u5143\uff09<\/p>\n
\u4ee5\u5e74\u5229\u73878%\u6295\u8d441000\u7f8e\u51439\u5e74\uff0c\u53ef\u5f97\u5230\u7ea62000\u7f8e\u5143\uff08\u5b9e\u9645\u6570\u5b57\u5f0f1999\u7f8e\u5143\uff09<\/p>\n
\u5047\u8bbe\u4e00\u4e2a\u6307\u6570\u7a0b\u5e8f\u89e3\u51b3\u89c4\u6a21\u4e3an=40\u7684\u95ee\u9898\u9700\u898110\u79d2\u7684\u65f6\u95f4\uff0c\u5e76\u4e14n\u6bcf\u589e\u52a01\u8fd0\u884c\u65f6\u95f4\u5c31\u589e\u52a012%\uff0c\u95ee\u5f53\u6211\u4eec\u628an=100\u7684\u65f6\u5019\uff0c\u5927\u7ea6\u9700\u8981\u591a\u5c11\u8fd0\u884c\u65f6\u95f4\uff1f<\/p>\n
\u6839\u636e72\u6cd5\u5219\uff0cn\u6bcf\u589e\u52a06\u8fd0\u884c\u65f6\u95f4\u7ffb\u500d\uff0c\u90a3\u4e48\u5f53n\u589e\u52a060\uff0c\u8fd0\u884c\u65f6\u95f4\u589e\u52a0\u4e3a\u539f\u6765\u76842^10\u22481000\u500d\u3002\u56e0\u6b64\uff0cn=100\u65f6\uff0c\u5927\u7ea6\u9700\u898110 000\u79d2\uff082~3\u4e2a\u5c0f\u65f6\uff09\u3002<\/p>\n
\u8054\u5408\u56fd\u4f30\u7b971998\u5e74\u7684\u4e16\u754c\u4eba\u53e3\u4e3a59\u4ebf\uff0c\u5e74\u589e\u957f\u7387\u4e3a1.33%\u3002\u5982\u679c\u6309\u7167\u8fd9\u4e2a\u901f\u7387\u4e0b\u53bb\uff0c\u52302050\u5e74\u4eba\u53e3\u4f1a\u662f\u591a\u5c11\uff1f<\/p>\n
2050-1998=52\uff1b 52*1.33\u224870<\/p>\n
\u56e0\u6b64\u6839\u636e72\u6cd5\u5219\uff0c2050\u5e74\u4eba\u53e3\u7ea6\u4e3a59*2=118\u4ebf\u3002<\/p>\n
\u51fa\u5904\uff1a\uff08http:\/\/www.cnblogs.com\/yjf512\/\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"
72\u6cd5\u5219 \u5047\u8bbe\u4ee5\u5e74\u5229\u7387r%\u6295\u8d44\u4e00\u7b14\u94b1y\u5e74\uff0c\u5982\u679cr*y=72,\u90a3\u4e48\u4f60\u7684\u6295\u8d44\u5dee\u4e0d\u591a\u4f1a\u7ffb\u500d\u3002 \u5373\uff1a\u589e\u957f\u7387\u4e58\u4ee5\u589e\u957f\u6b21\u6570 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-1299","post","type-post","status-publish","format-standard","hentry","category-16"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/1299","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/comments?post=1299"}],"version-history":[{"count":0,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/1299\/revisions"}],"wp:attachment":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/media?parent=1299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/categories?post=1299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/tags?post=1299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}