# 北航数值分析大作业

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• 数值分析大作业3.doc
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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/6273a38a40256a40ce34026f/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="" 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_1"></span>&#20026;&#65306;</div><div class="t m0 x2 h5 y6 ff3 fs2 fc0 sc1 ls0 ws0">x0=<span class="_ _2"> </span><span class="ff1">&#65288;<span class="_ _2"> </span></span>1,2,1,2<span class="_ _2"> </span><span class="ff1">&#65289;<span class="_ _2"> </span>&#65307;<span class="_ _2"> </span>&#23545;<span class="_ _2"> </span>&#21407;<span class="_ _2"> </span>&#39064;<span class="_ _2"> </span>&#20013;<span class="_ _2"> </span>&#32473;<span class="_ _3"> </span>&#20986;<span class="_ _3"> </span>&#30340;<span class="_ _4"> </span>&#65292;<span class="_ _5"> </span>&#65292;</span></div><div class="t m0 x3 h5 y7 ff1 fs2 fc0 sc1 ls0 ws0">&#30340;<span class="_ _6"> </span><span class="ff3">11*21<span class="_ _6"> </span></span>&#32452;<span class="_ _7"> </span>&#20998;&#21035;&#27714;&#20986;&#19982;&#20043;&#23545;&#24212;&#30340;<span class="_ _8"> </span>&#12290;</div><div class="t m0 x2 h5 y8 ff1 fs2 fc0 sc1 ls0 ws0">&#65288;<span class="ff3">2<span class="_ 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_a"></span>&#25968;<span class="_ _a"></span>&#34920;<span class="_ _a"></span>&#36827;<span class="_ _a"></span>&#34892;<span class="_ _a"></span>&#25554;<span class="_ _a"></span>&#20540;<span class="_ _a"></span>&#24471;<span class="_ _a"></span>&#21040;<span class="_ _a"></span>&#19982;<span class="_ _c"> </span>&#23545;<span class="_ _a"></span>&#24212;<span class="_ _a"></span>&#30340;<span class="_ _d"> </span>&#12290;<span class="_ _a"></span>&#20110;<span class="_ _a"></span>&#26159;<span class="_ _a"></span>&#20135;<span class="_ _a"></span>&#29983;<span class="_ _a"></span>&#20102;<span class="_ _e"> </span><span class="ff3">z=f(x,y)<span class="_ _a"></span></span>&#30340;</div><div class="t m0 x2 h5 ya ff3 fs2 fc0 sc1 ls0 ws0">11*21<span class="_ _6"> </span><span class="ff1">&#20010;&#25968;&#20540;&#35299;&#12290;</span></div><div class="t m0 x2 h5 yb ff1 fs2 fc0 sc1 ls0 ws0">&#65288;<span class="ff3">3</span>&#65289;<span class="ff3">.</span>&#20108;&#20803;&#26354;&#38754;&#30340;&#26368;&#23567;&#20108;&#20056;&#25311;&#21512;&#65306;&#20174;<span class="_ _f"> </span><span class="ff3">k=1<span class="_ _6"> </span></span>&#24320;&#22987;&#36880;&#28176;&#22686;&#22823;<span class="_ _6"> </span><span class="ff3">k<span class="_ _6"> </span></span>&#30340;&#20540;&#65292;&#23545;<span class="_ _6"> </span><span class="ff3">z=f(x,y)</span>&#36827;</div><div class="t m0 x2 h5 yc ff1 fs2 fc0 sc1 ls0 ws0">&#34892;&#25311;&#21512;&#65292;&#24471;&#21040;<span class="_ _1"></span>&#27599;&#27425;&#30340;<span class="_ _10"> </span>&#12290;&#24403;<span class="_ _11"> </span>&#26102;&#32467;&#26463;&#35745;&#31639;&#65292;<span class="_ _1"></span>&#36755;&#20986;&#25311;&#21512;&#32467;&#26524;&#12290;&#65288;&#27880;&#65306;<span class="_ _1"></span>&#22312;&#35745;</div><div class="t m0 x2 h5 yd ff1 fs2 fc0 sc1 ls0 ws0">&#31639;&#20013;<span class="_ _1"></span>&#20026;&#20102;<span class="_ _1"></span>&#36991;&#20813;<span class="_ _1"></span>&#30697;&#38453;<span class="_ _1"></span>&#27714;<span class="_ _1"></span>&#36870;&#65292;<span class="_ _1"></span>&#25226;&#22312;<span class="_ _1"></span>&#30697;&#38453;<span class="_ _1"></span>&#20013;&#38656;<span class="_ _1"></span>&#35201;&#27714;<span class="_ _1"></span>&#36870;&#30340;<span class="_ _1"></span>&#37096;&#20998;<span class="_ _1"></span>&#36716;&#25442;<span class="_ _1"></span>&#25104;&#35299;<span class="_ _1"></span>&#32447;&#24615;<span class="_ _1"></span>&#26041;&#31243;<span class="_ _1"></span>&#32452;<span class="_ _1"></span>&#22914;&#65306;</div><div class="t m0 x4 h5 ye ff1 fs2 fc0 sc1 ls0 ws0">&#21487;<span class="_ _a"></span>&#20197;<span class="_ _a"></span>&#20196;<span class="_ _12"> </span>&#25512;<span class="_ _a"></span>&#24471;<span class="_ _13"> </span>&#20877;<span class="_ _a"></span>&#29992;<span class="_ _a"></span>&#21516;<span class="_ _a"></span>&#26679;<span class="_ _a"></span>&#26041;<span class="_ _a"></span>&#27861;</div><div class="t m0 x2 h5 yf ff1 fs2 fc0 sc1 ls0 ws0">&#35745;&#31639;<span class="_ _14"> </span>&#20013;<span class="_ _1"></span>&#30340;<span class="_ _6"> </span><span class="ff3">C<span class="_ _15"> </span>&#8230;<span class="_ _1"></span>&#8230;<span class="_ _16"></span><span class="ff1">&#65288;<span class="_ _1"></span>&#21487;&#20197;<span class="_ _1"></span>&#20808;&#36716;<span class="_ _1"></span>&#32622;<span class="_ _17"> </span>&#65289;<span class="_ _1"></span>&#65292;&#26412;<span class="_ _1"></span>&#31243;&#24207;<span class="_ _1"></span>&#20013;<span class="_ _1"></span>&#35299;<span class="_ _1"></span>&#32447;&#24615;<span class="_ _1"></span>&#26041;&#31243;<span class="_ _1"></span>&#32452;<span class="_ _1"></span>&#25152;&#37319;<span class="_ _1"></span>&#29992;</span></span></div><div class="t m0 x2 h5 y10 ff1 fs2 fc0 sc1 ls0 ws0">&#30340;&#26041;&#27861;&#20026;&#21015;&#20027;&#20803;&#39640;&#26031;&#28040;&#20803;&#27861;&#12290;&#65289;</div><div class="t m0 x2 h5 y11 ff3 fs2 fc0 sc1 ls0 ws0">4.<span class="_ _1"></span><span class="ff1">&#35266;<span class="_ _1"></span>&#23519;<span class="_ _a"></span>&#36924;<span class="_ _1"></span>&#36817;<span class="_ _1"></span>&#25928;<span class="_ _1"></span>&#26524;<span class="_ _a"></span>&#65306;<span class="_ _1"></span>&#35745;<span class="_ _1"></span>&#31639;<span class="_ _18"> </span>&#30340;<span class="_ _1"></span>&#20540;<span class="_ _1"></span>&#24182;<span class="_ _a"></span>&#36755;<span class="_ _1"></span>&#20986;<span class="_ _1"></span>&#32467;</span></div><div class="t m0 x2 h5 y12 ff1 fs2 fc0 sc1 ls0 ws0">&#26524;&#65292;&#20197;&#35266;&#23519;&#36924;&#36817;&#30340;&#25928;&#26524;&#12290;&#20854;&#20013;<span class="_ _19"> </span>&#12290;</div><div class="t m0 x2 h4 y13 ff2 fs1 fc0 sc1 ls0 ws0">2.<span class="_ _0"> </span><span class="ff1">&#20027;&#35201;&#20989;&#25968;&#21151;&#33021;&#65306;</span></div><div class="t m0 x2 h6 y14 ff3 fs2 fc0 sc1 ls0 ws0">NewtonIter(double x, double y, vector&lt; double &gt;<span class="_ _1"></span> &amp;x0)</div><div class="t m0 x2 h5 y15 ff1 fs2 fc0 sc1 ls0 ws0">&#65306;&#29992;&#26469;&#36827;&#34892;&#29275;&#39039;&#36845;&#20195;&#27861;&#35299;&#32447;&#24615;&#26041;&#31243;&#65307;</div><div class="t m0 x2 h6 y16 ff3 fs2 fc0 sc1 ls0 ws0">SurfFit(vector&lt; double &gt; xi, vector&lt; double &gt; yj,</div><div class="t m0 x5 h6 y17 ff3 fs2 fc0 sc1 ls0 ws0"> vector&lt; vector&lt; double &gt; &gt; U, int k)</div><div class="t m0 x2 h5 y18 ff1 fs2 fc0 sc1 ls0 ws0">&#65306;&#26354;&#38754;&#26368;&#23567;&#20108;&#20056;&#25311;&#21512;&#65307;</div><div class="t m0 x2 h6 y19 ff3 fs2 fc0 sc1 ls0 ws0">QuadratiInterp(double x, double y, vector&lt;double&gt; u,</div><div class="t m0 x6 h6 y1a ff3 fs2 fc0 sc1 ls0 ws0"> vector&lt;double&gt; t, vector&lt;vector&lt;double&gt;&gt; z)</div><div class="t m0 x2 h5 y1b ff1 fs2 fc0 sc1 ls0 ws0">&#65306;&#20998;&#29255;&#32447;&#24615;&#20108;&#27425;&#25554;&#20540;&#65307;</div><div class="t m0 x2 h5 y1c ff1 fs2 fc0 sc1 ls0 ws0">&#20854;&#20182;&#23567;&#20989;&#25968;&#30340;&#35814;&#32454;&#35828;&#26126;&#35265;&#20195;&#30721;&#27880;&#37322;&#12290;</div><div class="t m0 x2 h4 y1d ff3 fs1 fc0 sc1 ls0 ws0">3.<span class="_ _1a"> </span><span class="ff1">&#28304;&#20195;&#30721;</span></div><div class="t m0 x2 h5 y1e ff3 fs3 fc0 sc1 ls0 ws0"> <span class="fs2">// MifaTest.cpp : <span class="ff1">&#23450;&#20041;&#25511;&#21046;&#21488;&#24212;&#29992;&#31243;&#24207;&#30340;&#20837;&#21475;&#28857;&#12290;</span></span></div><div class="t m0 x2 h6 y1f ff3 fs2 fc0 sc1 ls0 ws0">//</div><div class="t m0 x2 h5 y20 ff3 fs2 fc0 sc1 ls0 ws0">// QuadraticFit.cpp : <span class="ff1">&#23450;&#20041;&#25511;&#21046;&#21488;&#24212;&#29992;&#31243;&#24207;&#30340;&#20837;&#21475;&#28857;&#12290;</span></div><div class="t m0 x2 h6 y21 ff3 fs2 fc0 sc1 ls0 ws0">//</div><div class="t m0 x2 h6 y22 ff3 fs2 fc0 sc1 ls0 ws0">/</div><div class="t m0 x2 h6 y23 ff3 fs2 fc0 sc1 ls0 ws0">*********************************************************************</div></div><div class="t m0 x7 h7 y24 ff2 fs4 fc0 sc1 ls0 ws0">1</div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>

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