{"id":312438,"date":"2021-01-15T08:45:53","date_gmt":"2021-01-15T00:45:53","guid":{"rendered":"http:\/\/4563.org\/?p=312438"},"modified":"2021-01-15T08:45:53","modified_gmt":"2021-01-15T00:45:53","slug":"%e8%ae%a9%e4%ba%ba%e5%9b%b0%e6%83%91%e7%9a%84%e6%b5%ae%e7%82%b9%e7%b2%be%e5%ba%a6%e5%92%8c%e8%af%af%e5%b7%ae","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=312438","title":{"rendered":"\u8ba9\u4eba\u56f0\u60d1\u7684\u6d6e\u70b9\u7cbe\u5ea6\u548c\u8bef\u5dee"},"content":{"rendered":"
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\u8ba9\u4eba\u56f0\u60d1\u7684\u6d6e\u70b9\u7cbe\u5ea6\u548c\u8bef\u5dee <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : sillydaddy <\/span> <\/i> 6<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
\u8ba1\u7b97\u673a\u7684\u6d6e\u70b9\u6570\u53ea\u6709\u6709\u9650\u7cbe\u5ea6\uff0c\u6d6e\u70b9\u8fd0\u7b97\u4f1a\u635f\u5931\u7cbe\u5ea6\uff0c\u6211\u5c31\u9047\u5230\u4e86\u4e00\u4e2a\u4f8b\u5b50\uff1a
\u5df2\u77e5 A,B \u4e24\u70b9\u5750\u6807\u5206\u522b\u4e3a(10000000.0, 0, 0), (10000000.0, 0.001, 0)\uff0c\u6c42 AB \u7ebf\u6bb5\u7684\u957f\u5ea6\u3002
\u89e3\u6cd5 1\uff1a \u76f4\u63a5\u6c42\u5411\u91cf A-B=(0,0.001,0)\u7684\u957f\u5ea6\uff0c\u5f97\u5230\u7ed3\u679c\u662f 0.001
\u89e3\u6cd5 2\uff1a \u7531\u4e8e A \u3001B \u548c\u539f\u70b9 O \u6784\u6210\u76f4\u89d2\u4e09\u89d2\u5f62\uff0c\u4f7f\u7528\u52fe\u80a1\u5b9a\u7406\uff0c\u4f7f\u7528|AO|*|AO| – |BO|*|BO| = |AB|*|AB|\uff0c\u6c42\u5f97|AB|\u662f 0
\u5176\u4e2d\uff0c\u89e3\u6cd5 2 \u7531\u4e8e\u5728\u5927\u6570\u7684\u4e58\u6cd5\u8fd0\u7b97\u540e\uff0c\u518d\u505a\u51cf\u6cd5\u8fd0\u7b97\uff0c\u5bfc\u81f4\u635f\u5931\u4e86\u7cbe\u5ea6\u3002<\/p>\n

\u90a3\u4e48\uff0c\u73b0\u5728\u6211\u60f3\u89e3\u4e8c\u6b21\u65b9\u7a0b a*x*x+b*x+c=0 \u7684\u6839\uff1a
\u7528\u6c42\u6839\u516c\u5f0f\uff1ax1,2=(-b\u00b1\u0394)\/(2*a)\uff0c\u5176\u4e2d\u0394=sqrt(b*b-4*a*c)
\u516c\u5f0f\u91cc\u9762\u6709\u6d6e\u70b9\u6570\u7684\u4e58\u6cd5\uff0c\u52a0\u51cf\u6cd5\uff0c\u9664\u6cd5\uff0c\u6240\u4ee5\u6bd4\u7167\u4e0a\u9762\u4e3e\u7684\u4f8b\u5b50\uff0c\u8fd9\u91cc\u5e94\u8be5\u4e5f\u4f1a\u635f\u5931\u7cbe\u5ea6\u3002<\/p>\n

\u90a3\u4e48\u635f\u5931\u7684\u7cbe\u5ea6\u662f\u591a\u5c11\u5462\uff1f
\u6211\u6ce8\u610f\u5230\uff0c\u65b9\u7a0b\u7cfb\u6570 a,b,c \u7684\u503c\u53ef\u4ee5\u7b49\u6bd4\u4f8b\u653e\u5927\uff0c\u4e0d\u5f71\u54cd\u7406\u8bba\u4e0a\u7684\u8ba1\u7b97\u7ed3\u679c\uff0c\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7\u653e\u5927 a,b,c \u7684\u503c\uff0c\u8ba9\u7ecf\u8fc7\u8fd0\u7b97\u540e\u7684\u6d6e\u70b9\u7ed3\u679c\u66f4\u7cbe\u786e\u5417\uff1f <\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (6<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
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    \n
    \u8cc7\u6df1\u5927\u4f6c : shintendo <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6d6e\u70b9\u7cbe\u5ea6\u770b\u6709\u6548\u6570\u5b57\uff0c\u4f60\u653e\u5927\u4e5f\u6ca1\u7528\u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : walsh <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    FLT_EPSILON DBL_EPSILON
    \u8be6\u60c5\u300a\u6570\u503c\u5206\u6790\u300b <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : agagega <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6d6e\u70b9\u6570\u7684\u8bef\u5dee\u5f88\u591a\u6765\u81ea\u4e24\u70b9\uff1a
    1. \u6709\u6548\u6570\u5b57\u4e0d\u540c\uff0c\u4e5f\u5c31\u662f\u5927\u6570\u548c\u5c0f\u6570\u505a\u8fd0\u7b97\u7684\u65f6\u5019\u3002\u56e0\u4e3a\u505a\u8fd0\u7b97\u7684\u65f6\u5019\u8981\u628a\u6307\u6570\u5bf9\u9f50\uff0c\u6240\u4ee5\u7406\u8bba\u4e0a\u4f60\u653e\u5927\u8fd8\u662f\u4e0d\u653e\u5927\u6ca1\u6709\u4ec0\u4e48\u533a\u522b
    2. \u4e00\u4e9b\u6570\u5728\u4e8c\u8fdb\u5236\u91cc\u65e0\u6cd5\u7cbe\u786e\u8868\u793a <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : tonyrft <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5982\u679c\u771f\u7684\u60f3\u8981\u9ad8\u7cbe\u5ea6\u7528\u8ba1\u7b97\u673a\u4ee3\u6570\u7cfb\u7edf\u5c31\u884c\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : vivoapex <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u53c2\u8003\u300a\u6df1\u5165\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf\u300b\uff0c\u6211\u82b1\u4e86\u4e24\u5468\u624d\u628a\u6574\u6570\u548c\u6d6e\u70b9\u6570\u641e\u5b9a <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : UN2758 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0d\u80fd,\u7531\u4e8e IEEE754 \u89c4\u5b9a\u7684\u5c3e\u7801\u957f\u5ea6\u6709\u9650,\u9047\u5230\u65e0\u6cd5\u7528 2 \u7684 n^-1 \u8868\u793a\u7684\u6570\u65f6,\u8bef\u5dee\u5c31\u4e00\u5b9a\u5b58\u5728,\u4f60\u7684\u653e\u5927\u64cd\u4f5c\u662f\u653e\u5927\u4e86\u9636\u7801,\u6ca1\u7528 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u8ba9\u4eba\u56f0\u60d1\u7684\u6d6e\u70b9\u7cbe\u5ea6\u548c\u8bef\u5dee \u8cc7\u6df1\u5927\u4f6c…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/312438"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=312438"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/312438\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=312438"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=312438"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=312438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}