数学建模matlab代码

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  • 2022-02-23 09:59
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这些代码资源,包括一些必要的算法,当然了,算法是由代码的,自己建模时用的代码,整理在一起,相信还是有很大用的
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<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/622bdb083d2fbb000796acd0/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622bdb083d2fbb000796acd0/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">&#22270;&#35770;&#31639;&#27861;&#21450;&#20854;<span class="_ _0"> </span><span class="ff2 ls1">MATLAB<span class="_"> </span></span>&#31243;&#24207;&#20195;&#30721;<span class="ff2 ws1"> </span></div><div class="t m0 x2 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">&#27714;&#36171;&#26435;&#22270;<span class="_ _0"> </span><span class="ff3 ls2">G</span><span class="ff2 ws1"> <span class="ls3 ws0">=<span class="ls4 ws2"> (<span class="_ _1"></span></span><span class="ff3 ls5">V<span class="_ _2"></span><span class="ff2 ls6">, <span class="_ _2"></span><span class="ff3 ls5">E<span class="ls0 ws1"> <span class="_ _2"></span><span class="ff2 ls6 ws0">, <span class="_ _2"></span><span class="ff3 ls5 ws3">F <span class="ff2 ls7 ws0">)<span class="ff1 ls8">&#20013;&#20219;&#24847;&#20004;&#28857;&#38388;&#30340;&#26368;&#30701;&#36335;&#30340;<span class="_ _3"> </span></span><span class="ls9">Warshall</span>-<span class="lsa">F<span class="lsb">loyd<span class="_ _0"> </span><span class="ff1 ls0">&#31639;&#27861;&#65306;<span class="ff2 ws1"> </span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x2 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">&#35774;<span class="_ _4"> </span><span class="ff4 lsc ws4">A <span class="_"> </span><span class="ff2 lsd ws5">= (</span></span><span class="ff3">a</span></div><div class="t m0 x3 h3 y4 ff3 fs1 fc0 sc0 lse ws6">ij </div><div class="t m0 x4 h2 y3 ff2 fs0 fc0 sc0 ls7 ws0">)</div><div class="t m0 x5 h3 y4 ff3 fs1 fc0 sc0 ls6 ws0">n</div><div class="t m0 x6 h4 y5 ff1 fs2 fc0 sc0 ls0 ws0">&#215;</div><div class="t m0 x7 h3 y4 ff3 fs1 fc0 sc0 ls6 ws0">n</div><div class="t m0 x8 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">&#20026;&#36171;&#26435;&#22270;<span class="_ _4"> </span><span class="ff3 ls2">G</span><span class="ff2 ws1"> <span class="ls3 ws0">=<span class="ls4 ws2"> (<span class="_ _1"></span></span><span class="ff3 ls5">V<span class="_ _2"></span><span class="ff2 ls6">, <span class="_ _2"></span><span class="ff3 ls5">E<span class="ls0 ws1"> <span class="_ _2"></span><span class="ff2 ls6 ws0">, <span class="_ _2"></span><span class="ff3 ls5 ws3">F <span class="ff2 ls7 ws0">)<span class="ff1 ls0">&#30340;&#30697;&#38453;<span class="_ _2"></span><span class="ff2 lsf">, <span class="_ _3"> </span><span class="ff1 ls0">&#24403;<span class="_ _4"> </span><span class="ff3 ls10">v</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x9 h3 y4 ff3 fs1 fc0 sc0 ls11 ws0">i</div><div class="t m0 xa h5 y3 ff3 fs0 fc0 sc0 ls10 ws0">v</div><div class="t m0 xb h3 y4 ff3 fs1 fc0 sc0 ls11 ws0">j</div><div class="t m0 xc h5 y3 ff1 fs0 fc0 sc0 ls0 ws0">&#8712;<span class="ff3 ls5">E<span class="_ _4"> </span></span>&#26102;<span class="_ _4"> </span><span class="ff3">a</span></div><div class="t m0 xd h6 y4 ff3 fs1 fc0 sc0 ls11 ws0">ij<span class="ff2 ls0 ws7"> </span></div><div class="t m0 xe h2 y3 ff2 fs0 fc0 sc0 ls3 ws0">=<span class="_ _2"></span><span class="ls0 ws1"> <span class="ff3 ls5 ws0">F</span><span class="ls4 ws2"> (<span class="_ _1"></span><span class="ff3 ls10 ws0">v</span></span></span></div><div class="t m0 xf h3 y4 ff3 fs1 fc0 sc0 ls11 ws0">i</div><div class="t m0 x10 h5 y3 ff3 fs0 fc0 sc0 ls10 ws0">v</div><div class="t m0 x11 h3 y4 ff3 fs1 fc0 sc0 ls11 ws0">j</div><div class="t m0 x12 h2 y3 ff2 fs0 fc0 sc0 ls12 ws8">), <span class="_ _3"> </span><span class="ff1 ls0 ws0">&#21542;&#21017;&#21462;<span class="_ _4"> </span><span class="ff3">a</span></span></div><div class="t m0 x13 h6 y4 ff3 fs1 fc0 sc0 ls13 ws0">ii<span class="_ _1"></span><span class="ff2 ls0 ws7"> </span></div><div class="t m0 x14 h2 y3 ff2 fs0 fc0 sc0 ls14 ws9">=0, <span class="ff3 ls0 ws0">a</span></div><div class="t m0 x15 h6 y4 ff3 fs1 fc0 sc0 ls11 ws0">ij<span class="_ _2"></span><span class="ff2 ls0 ws7"> </span></div><div class="t m0 x16 h2 y6 ff2 fs0 fc0 sc0 ls3 wsa">= +<span class="ff1 ls0 ws0">&#8734;<span class="ff2 ls7">(<span class="ff3 ls15">i</span></span>&#8800;<span class="ff3 ls16 wsb">j <span class="_ _1"></span></span></span><span class="ls17 wsc">), <span class="ff3 ls0 ws0">d</span></span></div><div class="t m0 x17 h3 y7 ff3 fs1 fc0 sc0 ls13 ws0">ij</div><div class="t m0 x18 h5 y6 ff1 fs0 fc0 sc0 ls0 ws0">&#34920;&#31034;&#20174;<span class="_ _4"> </span><span class="ff3 ls10">v</span></div><div class="t m0 x19 h3 y7 ff3 fs1 fc0 sc0 ls11 ws0">i</div><div class="t m0 x1a h5 y6 ff1 fs0 fc0 sc0 ls0 ws0">&#21040;<span class="_ _4"> </span><span class="ff3 ls10">v</span></div><div class="t m0 x1b h3 y7 ff3 fs1 fc0 sc0 ls11 ws0">j</div><div class="t m0 x1c h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">&#28857;&#30340;&#36317;&#31163;<span class="_ _2"></span><span class="ff2 ls6">, <span class="ff3 ls18">r</span></span></div><div class="t m0 x1d h3 y7 ff3 fs1 fc0 sc0 ls11 ws0">ij</div><div class="t m0 x1e h5 y6 ff1 fs0 fc0 sc0 ls19 ws0">&#34920;&#31034;&#20174;<span class="_ _3"> </span><span class="ff3 ls10">v</span></div><div class="t m0 x1f h3 y7 ff3 fs1 fc0 sc0 ls11 ws0">i</div><div class="t m0 x20 h5 y6 ff1 fs0 fc0 sc0 ls0 ws0">&#21040;<span class="_ _4"> </span><span class="ff3 ls10">v</span></div><div class="t m0 x21 h3 y7 ff3 fs1 fc0 sc0 ls11 ws0">j</div><div class="t m0 x22 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">&#28857;&#30340;&#26368;&#30701;&#36335;&#20013;&#19968;&#20010;&#28857;&#30340;&#32534;&#21495;<span class="ff2 ls6">.<span class="ls0 ws1"> </span></span></div><div class="t m0 x2 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">&#9312;<span class="ff2 ws1"> <span class="_"> </span></span>&#36171;&#21021;&#20540;<span class="ff2 lsf">. <span class="_ _3"> </span></span><span class="ls19">&#23545;&#25152;&#26377;<span class="_ _3"> </span><span class="ff3 ls15">i<span class="_ _2"></span><span class="ff2 ls6">, <span class="ff3 ls15">j<span class="_ _2"></span><span class="ff2 ls6">, <span class="ff3 ls0">d</span></span></span></span></span></span></div><div class="t m0 x1c h3 y9 ff3 fs1 fc0 sc0 ls11 wsd">ij </div><div class="t m0 x23 h2 y8 ff2 fs0 fc0 sc0 ls3 wsa">= <span class="ff3 ls0 ws0">a</span></div><div class="t m0 x24 h3 y9 ff3 fs1 fc0 sc0 ls11 ws0">ij</div><div class="t m0 x25 h2 y8 ff2 fs0 fc0 sc0 ls6 ws0">, <span class="ff3 ls18">r</span></div><div class="t m0 x26 h3 y9 ff3 fs1 fc0 sc0 ls11 wsd">ij </div><div class="t m0 x27 h2 y8 ff2 fs0 fc0 sc0 ls1a wsa">= <span class="_ _1"></span><span class="ff3 ls15 ws0">j<span class="ff2 lsf">. </span><span class="ls1b wse">k </span></span><span class="ls1c wsf">= 1. <span class="_ _3"> </span><span class="ff1 ls0 ws0">&#36716;&#21521;&#9313;<span class="ff2 ws1"> </span></span></span></div><div class="t m0 x2 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">&#9313;<span class="ff2 ws1"> <span class="_"> </span></span>&#26356;&#26032;<span class="_ _0"> </span><span class="ff3">d</span></div><div class="t m0 x4 h3 yb ff3 fs1 fc0 sc0 ls11 ws0">ij</div><div class="t m0 x5 h2 ya ff2 fs0 fc0 sc0 ls6 ws0">, <span class="ff3 ls18">r</span></div><div class="t m0 x28 h3 yb ff3 fs1 fc0 sc0 lse ws6">ij </div><div class="t m0 x29 h2 ya ff2 fs0 fc0 sc0 lsf ws0">. <span class="_ _3"> </span><span class="ff1 ls0">&#23545;&#25152;&#26377;<span class="_ _0"> </span><span class="ff3 ls15">i<span class="_ _2"></span><span class="ff2 ls6">, <span class="ff3 ls15">j<span class="_ _2"></span><span class="ff2 lsf">, <span class="_ _3"> </span><span class="ff1 ls0">&#33509;<span class="_ _0"> </span><span class="ff3">d</span></span></span></span></span></span></span></div><div class="t m0 x2a h3 yb ff3 fs1 fc0 sc0 ls1d ws10">ik </div><div class="t m0 x27 h2 ya ff2 fs0 fc0 sc0 ls3 ws0">+<span class="ff3 ls1e ws11"> d</span></div><div class="t m0 x2b h3 yb ff3 fs1 fc0 sc0 ls1f ws0">k j</div><div class="t m0 x2c h5 ya ff1 fs0 fc0 sc0 ls0 ws0">&#65308;<span class="ff3">d</span></div><div class="t m0 x2d h3 yb ff3 fs1 fc0 sc0 ls13 ws0">ij</div><div class="t m0 x2e h2 ya ff2 fs0 fc0 sc0 lsf ws0">, <span class="_ _3"> </span><span class="ff1 ls20">&#21017;&#20196;<span class="_ _3"> </span><span class="ff3 ls0">d</span></span></div><div class="t m0 xa h3 yb ff3 fs1 fc0 sc0 ls13 ws0">ij</div><div class="t m0 x2f h2 ya ff2 fs0 fc0 sc0 ls3 wsa"> =<span class="_ _2"></span><span class="ff3 ls1e ws11"> d</span></div><div class="t m0 x30 h3 yb ff3 fs1 fc0 sc0 ls1d ws10">ik </div><div class="t m0 x31 h2 ya ff2 fs0 fc0 sc0 ls3 ws0">+<span class="ff3 ls1e ws11"> d</span></div><div class="t m0 x32 h3 yb ff3 fs1 fc0 sc0 ls1f ws0">k j</div><div class="t m0 x33 h2 ya ff2 fs0 fc0 sc0 ls6 ws0">, <span class="ff3 ls18">r</span></div><div class="t m0 x34 h3 yb ff3 fs1 fc0 sc0 ls11 wsd">ij </div><div class="t m0 x35 h2 ya ff2 fs0 fc0 sc0 ls1a wsa">= <span class="_ _1"></span><span class="ff3 ls10 ws0">k<span class="ff2 lsf">, <span class="_ _3"> </span><span class="ff1 ls0">&#36716;&#21521;&#9314;</span><span class="ls6">.</span></span><span class="ls0 ws1"> </span></span></div><div class="t m0 x2 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">&#9314;<span class="ff2 ws1"> <span class="_"> </span></span>&#32456;&#27490;&#21028;&#26029;<span class="ff2 lsf">. <span class="_ _0"> </span></span>&#33509;<span class="_ _0"> </span><span class="ff3">d</span></div><div class="t m0 x36 h3 yd ff3 fs1 fc0 sc0 ls13 ws0">ii</div><div class="t m0 x37 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">&#65308;<span class="ff2 ls21 ws7">0, <span class="_ _3"> </span></span><span class="ls22">&#21017;&#23384;&#22312;&#19968;&#26465;&#21547;&#26377;&#39030;&#28857;<span class="_ _3"> </span><span class="ff3 ls10">v</span></span></div><div class="t m0 x38 h3 yd ff3 fs1 fc0 sc0 ls11 ws0">i</div><div class="t m0 x39 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">&#30340;&#36127;&#22238;&#36335;<span class="ff2 lsf">, <span class="_ _3"> </span></span>&#32456;&#27490;<span class="ff2 ls16 wsb">; <span class="_ _3"> </span></span><span class="ls20">&#25110;&#32773;<span class="_ _3"> </span><span class="ff3 ls10 wse">k <span class="_ _5"></span><span class="ff2 ls1a wsa">= <span class="_ _1"></span></span></span></span><span class="ff3">n<span class="_ _0"> </span></span>&#32456;&#27490;<span class="ff2 ls16 wsb">; <span class="_ _3"> </span></span>&#21542;&#21017;</div><div class="t m0 x16 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">&#20196;<span class="_ _0"> </span><span class="ff3 ls10">k<span class="ff2 ls3 wsa"> =</span><span class="wse"> k<span class="ff2 ls1c ws12"> + 1, <span class="_ _3"> </span></span></span></span>&#36716;&#21521;&#9313;<span class="ff2 ls6">.<span class="ls0 ws1"> </span></span></div><div class="t m0 x2 h5 yf ff1 fs0 fc0 sc0 ls0 ws0">&#26368;&#30701;&#36335;&#32447;&#21487;&#30001;<span class="_ _0"> </span><span class="ff3 ls18">r</span></div><div class="t m0 x3a h3 y10 ff3 fs1 fc0 sc0 ls11 ws0">ij</div><div class="t m0 x3b h2 yf ff1 fs0 fc0 sc0 ls0 ws0">&#24471;&#21040;<span class="ff2 ls6">.<span class="ls0 ws1"> </span></span></div><div class="t m0 x16 h2 y11 ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x2 h7 y12 ff5 fs0 fc0 sc0 ls0 ws0">&#20363;<span class="_ _3"> </span><span class="ff6">1<span class="_ _2"></span><span class="ff2 ws13"> <span class="_ _1"></span><span class="ff1 ls20 ws0">&#27714;&#22270;<span class="_ _3"> </span></span><span class="ws0">6<span class="ls7">-<span class="_ _2"></span><span class="ls0">4<span class="_ _0"> </span><span class="ff1">&#20013;&#20219;&#24847;&#20004;&#28857;&#38388;&#30340;&#26368;&#30701;&#36335;</span><span class="ls6">.</span><span class="ws1"> </span></span></span></span></span></span></div><div class="t m0 x16 h2 y13 ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x16 h2 y14 ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x16 h2 y15 ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x16 h2 y16 ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x16 h2 y17 ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x16 h2 y18 ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x16 h2 y19 ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x2 h2 y1a ff7 fs0 fc0 sc0 ls0 ws0">&#35299;<span class="ff1">&#65306;&#29992;<span class="_ _0"> </span><span class="ff2 ls9">Warshall<span class="ls7">-<span class="lsa">F<span class="lsb">loyd<span class="_ _0"> </span></span></span></span></span>&#31639;&#27861;<span class="ff2 ls23 ws14">, MATLAB<span class="_ _4"> </span></span>&#31243;&#24207;&#20195;&#30721;&#22914;&#19979;&#65306;<span class="ff2 ws1"> </span></span></div><div class="t m0 x16 h8 y1b ff8 fs3 fc0 sc0 ls24 ws0">n=8;<span class="_ _2"></span><span class="ls25">A=[0<span class="_ _5"> </span><span class="ls0 ws15"> <span class="_ _0"> </span></span><span class="ls24">2<span class="ls0 ws15"> <span class="_ _6"> </span></span>8<span class="ls0 ws15"> <span class="_ _6"> </span></span>1<span class="ls0 ws15"> <span class="_ _6"> </span></span><span class="ls26">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> </span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x2 h8 y1c ff8 fs3 fc0 sc0 ls24 ws0">2<span class="ls0 ws15"> <span class="_ _6"> </span></span>0<span class="ls0 ws15"> <span class="_ _6"> </span></span>6<span class="ls0 ws15"> <span class="_ _6"> </span></span><span class="ls26">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">1</span> <span class="_ _6"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls27 ws0">In<span class="_ _1"></span><span class="ls28">f</span></span> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> </span></span></span></span></span></span></div><div class="t m0 x2 h8 y1d ff8 fs3 fc0 sc0 ls24 ws0">8<span class="ls0 ws15"> <span class="_ _6"> </span></span>6<span class="ls0 ws15"> <span class="_ _6"> </span></span>0<span class="ls0 ws15"> <span class="_ _6"> </span></span>7<span class="ls0 ws15"> <span class="_ _6"> </span></span>5<span class="ls0 ws15"> <span class="_ _6"> </span></span>1<span class="ls0 ws15"> <span class="_ _6"> </span></span>2<span class="ls0 ws15"> <span class="_ _6"> </span></span><span class="ls26">Inf<span class="_ _2"></span><span class="ls0 ws15"> </span></span></div><div class="t m0 x2 h8 y1e ff8 fs3 fc0 sc0 ls24 ws0">1<span class="ls0 ws15"> <span class="_ _6"> </span></span><span class="ls26">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">7</span> <span class="_ _6"> </span><span class="ls24 ws0">0</span> <span class="_ _6"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">9</span> <span class="_ _6"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> </span></span></span></span></span></span></span></span></div><div class="t m0 x2 h8 y1f ff8 fs3 fc0 sc0 ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">1</span> <span class="_ _6"> </span><span class="ls24 ws0">5</span> <span class="_ _6"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">0</span> <span class="_ _6"> </span><span class="ls24 ws0">3</span> <span class="_ _6"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">8</span> </span></span></span></span></span></div><div class="t m0 x2 h8 y20 ff8 fs3 fc0 sc0 ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">1</span> <span class="_ _6"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">3</span> <span class="_ _6"> </span><span class="ls24 ws0">0</span> <span class="_ _6"> </span><span class="ls24 ws0">4</span> <span class="_ _6"> </span><span class="ls24 ws0">6</span> </span></span></span></span></span></div><div class="t m0 x2 h8 y21 ff8 fs3 fc0 sc0 ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">2</span> <span class="_ _6"> </span><span class="ls24 ws0">9</span> <span class="_ _6"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">4</span> <span class="_ _6"> </span><span class="ls24 ws0">0</span> <span class="_ _6"> </span><span class="ls24 ws0">3</span> </span></span></span></span></span></div><div class="t m0 x2 h9 y22 ff8 fs3 fc0 sc0 ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls26 ws0">Inf<span class="_ _2"></span><span class="ls0 ws15"> <span class="_ _7"> </span><span class="ls24 ws0">8</span> <span class="_ _6"> </span><span class="ls24 ws0">6</span> <span class="_ _6"> </span><span class="ls24 ws0">3</span> <span class="_ _6"> </span><span class="ls24 ws0">0<span class="ls28">];</span></span> <span class="_"> </span> <span class="_ _8"> </span><span class="fc1 ls29 ws16">% MATLAB<span class="_ _0"> </span><span class="ff1 ls0 ws0">&#20013;</span><span class="ls2a ws17">, Inf<span class="_ _5"> </span><span class="ff1 ls0 ws0">&#34920;&#31034;&#8734;</span></span></span> </span></span></span></span></span></span></span></div><div class="t m0 x16 h9 y23 ff8 fs3 fc0 sc0 ls2b ws0">D=A;<span class="_ _1"></span><span class="ls0 ws15"> <span class="_ _0"> </span> <span class="_ _9"> </span></span><span class="fc1 ls2c">%<span class="ff1 ls0">&#36171;&#21021;&#20540;<span class="ff8 fc2 ws15"> </span></span></span></div><div class="t m0 x16 h9 y24 ff8 fs3 fc2 sc0 ls2d ws0">for<span class="fc0 ls2e">(i<span class="ls2f">=1:n<span class="_ _1"></span><span class="ls30">)</span></span></span>for<span class="fc0 ls2e">(j<span class="ls2f">=1:n<span class="_ _1"></span><span class="ls31">)R(i,j)=j;<span class="_ _2"></span><span class="fc2 ls32">end<span class="fc0 ls28">;</span><span class="ls33">end<span class="fc0 ls0 ws15"> <span class="_ _a"> </span></span><span class="fc1 ls2c">%<span class="ff1 ls0">&#36171;&#36335;&#24452;&#21021;&#20540;</span></span><span class="ls0 ws15"> </span></span></span></span></span></span></div><div class="t m0 x16 h9 y25 ff8 fs3 fc2 sc0 ls2d ws0">for<span class="fc0 ls34">(k<span class="ls2f">=1:n<span class="_ _1"></span><span class="ls30">)</span></span></span>for<span class="fc0 ls2e">(i<span class="ls2f">=1:n<span class="_ _1"></span><span class="ls30">)</span></span></span>for<span class="fc0 ls2e">(j<span class="ls35">=1:n<span class="_ _1"></span><span class="ls30">)</span></span></span><span class="ls6">if<span class="_ _2"></span><span class="fc0 ls2e">(D<span class="ls36">(i,k)+D(<span class="ls37">k,j)&lt;D(i,j)<span class="ls0">)D(i,j)=D(i,k)+D(k,j);<span class="ws15"> <span class="_ _5"> </span> <span class="_ _b"> </span></span><span class="fc1 ls2c">%<span class="ff1 ls0">&#26356;&#26032;<span class="_ _4"> </span></span><span class="ls38">dij</span></span><span class="fc2 ws15"> </span></span></span></span></span></span></div><div class="t m0 x16 h9 y26 ff8 fs3 fc0 sc0 ls0 ws15"> <span class="_ _c"> </span><span class="ls39 ws0">R(i,j)=k;<span class="fc2 ls24">end</span><span class="ls28">;<span class="fc2 ls32">end</span>;<span class="fc2 ls33">end</span></span></span> <span class="_ _1"></span> <span class="_ _c"> </span><span class="fc1 ls2c ws0">%<span class="ff1 ls0">&#26356;&#26032;<span class="_ _4"> </span></span><span class="ls3a">rij</span></span><span class="fc2"> </span></div><div class="t m0 x16 h9 y27 ff8 fs3 fc0 sc0 ls0 ws15"> <span class="_ _c"> </span><span class="ws0">k</span> <span class="_ _d"> </span><span class="fc1 ls2c ws0">%<span class="ff1 ls0">&#26174;&#31034;&#36845;&#20195;&#27493;&#25968;</span></span><span class="fc1"> </span></div><div class="t m0 x16 h9 y28 ff8 fs3 fc0 sc0 ls0 ws15"> <span class="_ _c"> </span><span class="ls3b ws0">D</span> <span class="_ _e"> </span><span class="fc1 ls2c ws0">%<span class="ff1 ls0">&#26174;&#31034;&#27599;&#27493;&#36845;&#20195;&#21518;&#30340;&#36335;&#38271;</span></span><span class="fc1"> </span></div><div class="t m0 x16 h9 y29 ff8 fs3 fc0 sc0 ls0 ws15"> <span class="_ _c"> </span><span class="ls3b ws0">R</span> <span class="_ _e"> </span><span class="fc1 ls2c ws0">%<span class="ff1 ls0">&#26174;&#31034;&#27599;&#27493;&#36845;&#20195;&#21518;&#30340;&#36335;&#24452;</span></span><span class="fc1"> </span></div><div class="t m0 x16 h9 y2a ff8 fs3 fc0 sc0 ls0 ws15"> <span class="_ _c"> </span><span class="ls24 ws0">pd=0;<span class="_ _2"></span><span class="fc2 ls2d ws18">for <span class="fc0 ls3c ws0">i=1:n<span class="ls0 ws15"> <span class="_ _f"> </span></span><span class="fc1 ls2c">%<span class="ff1 ls0">&#21547;&#26377;&#36127;&#26435;&#26102;</span></span></span><span class="ls0 ws15"> </span></span></span></div><div class="t m0 x16 h9 y2b ff8 fs3 fc0 sc0 ls0 ws15"> <span class="_ _c"> </span> <span class="_ _c"> </span><span class="fc2 ls6 ws0">if<span class="_ _2"></span><span class="fc0 ls3d">(D(i,i)&lt;0)pd=1;<span class="_ _2"></span><span class="fc2 ls3e">break<span class="fc0 ls28">;</span><span class="ls24">end<span class="fc0 ls28">;</span><span class="ls32">end<span class="_ _2"></span><span class="fc0 ls0 ws15"> <span class="_ _3"> </span><span class="fc1 ls2c ws0">%<span class="ff1 ls0">&#23384;&#22312;&#19968;&#26465;&#21547;&#26377;&#39030;&#28857;<span class="_ _4"> </span></span><span class="ls3f">vi<span class="_ _0"> </span><span class="ff1 ls0">&#30340;&#36127;&#22238;&#36335;</span></span></span><span class="fc2"> </span></span></span></span></span></span></span></div><div class="t m0 x16 h9 y2c ff8 fs3 fc0 sc0 ls0 ws15"> <span class="_ _c"> </span><span class="fc2 ls6 ws0">if<span class="_ _2"></span><span class="fc0 ls40">(pd)<span class="fc2 ls3e">break</span><span class="ls28">;<span class="fc2 ls24">end<span class="_ _2"></span><span class="fc0 ls0 ws15"> <span class="_ _c"> </span><span class="fc1 ls2c ws0">%<span class="ff1 ls0">&#23384;&#22312;&#19968;&#26465;&#36127;&#22238;&#36335;</span><span class="ls28">, <span class="_"> </span><span class="ff1 ls0">&#32456;&#27490;&#31243;&#24207;</span></span></span><span class="fc2"> </span></span></span></span></span></span></div><div class="t m0 x16 h9 y2d ff8 fs3 fc2 sc0 ls24 ws0">end<span class="_ _2"></span><span class="fc0 ls0 ws15"> <span class="_ _3"> </span><span class="fc1 ls2c ws0">%<span class="ff1 ls0">&#31243;&#24207;&#32467;&#26463;</span></span><span class="fc2"> </span></span></div><div class="t m0 x16 h2 y2e ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x3c h2 y2f ff2 fs0 fc0 sc0 ls0 ws1"> </div><div class="t m0 x3d ha y30 ff1 fs3 fc0 sc0 ls0 ws0">&#22270;<span class="_ _4"> </span><span class="ff2">6<span class="ls30">-</span>4 </span></div><div class="c x3e y31 w2 hb"><div class="t m0 x0 h2 y32 ff2 fs0 fc0 sc0 ls0 ws1"> </div></div></div><div class="pi" data-data='{"ctm":[1.610738,0.000000,0.000000,1.610738,0.000000,0.000000]}'></div></div> </body> </html>
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