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[ÇóÖú] Matlab ÈýÎ¬ÖÆÍ¼ÏÔʾ´íÎó

>> syms x y z
[x,y]=meshgrid(-30:0.1:30);
z =1./(1 - 1/17903395057303560747995139200774466990785173651456000000000000*(x.^2).*(- 40677029284028334080*(x.^7) + 319456229981526228992*(x.^6) + 20944845745188058955776*(x.^5) - 159303762685264924770304*(x.^4) - 5783991953986077457383424*(x.^3) + 18321334501814910626824192*(x.^2) + 1084508037958266771931660288*x + 49909327088249939961061572608).^2).^(1/2)./((3889921127746483/3602879701896396800000)*(x + 9).^4 - (7474332468290957/57646075230342348800000)*(x + 9).^5 + (4956363431444651/922337203685477580800000)*(x + 9).^6 - (2269923509153367/29514790517935282585600000)*(x + 9).^7 + 247/25000) - ((1/(3889921127746483/3602879701896396800000)*(x + 9).^4 - (7474332468290957/57646075230342348800000)*(x + 9).^5 + (4956363431444651/922337203685477580800000)*(x + 9).^6 - (2269923509153367/29514790517935282585600000)*(x + 9).^7 + 247/25000).^2 - (x./(4568343288821643697192960*(x + 9).^4 - 548618394958946096906240*(x + 9).^5 + 22737416369020965355520*(x + 9).^6 - 325416234272226693120*(x + 9).^7 + 41804654842273876861339566080).*(- 40677029284028334080*(x.^7) + 319456229981526228992*(x.^6) + 20944845745188058955776*(x.^5) - 159303762685264924770304*(x.^4) - 5783991953986077457383424*(x.^3) + 18321334501814910626824192*(x.^2) + 1084508037958266771931660288*x + 49909327088249939961061572608)).^2 - y.^2).^(1/2);
mesh(x,y,z);
xlabel('x-axis');ylabel('y-axis');zlabel('z-axis');
title('Surface ')

??? Error using ==> mesh at 80
X, Y, Z, and C cannot be complex.
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yangfjh

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ÒýÓûØÌû:
2Â¥: Originally posted by yangfjh at 2015-11-15 10:53:35
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