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ÔËÐÐÒ»¸öÓÐԵɫɢµÄ³¬Ô½·½³ÌÇóÊýÖµ½â£¬ ϱßÊÇÎҵijÌÐò£¬ÓÃMATLAB7.1 ÔËÐÐÖ»Äܽá³öǰËĸö½â£¬forÑ»·µ½w=5ʱÏÔʾ ûÓо«È·½â£¬²»ÖªÎÊÌâ³öÔÚÁËÄÇÀÇó´ó³æÖ¸µãÃÔ½ò clc; clear; syms b; neff=zeros(1,31); digits(200); for w=1:31 d=vpa(w*5*1e-9); k0=vpa(2*pi/0.8e-6); e1=1; e2=13.425; w z=vpa(solve(exp(sqrt(b-e1*k0^2).*d)-(e2*sqrt(b-e1*k0^2)-e1*sqrt(b-e2*k0^2))/(e2*sqrt(b-e1*k0^2)+e1*sqrt(b-e2*k0^2)),b)); neff(1,w)=vpa(sqrt(z)/k0) end ÓÃËã½á¹ûÏÔʾÈçÏ neff = Columns 1 through 4 3.3286 + 1.6971i 2.2151 + 1.4575i 1.8060 + 1.2174i 1.5881 + 1.0458i Columns 5 through 8 0 0 0 0 Columns 9 through 12 0 0 0 0 Columns 13 through 16 0 0 0 0 Columns 17 through 20 0 0 0 0 Columns 21 through 24 0 0 0 0 Columns 25 through 28 0 0 0 0 Columns 29 through 31 0 0 0 w = 5 Warning: Explicit solution could not be found. > In solve at 140 In sym.solve at 49 ??? Subscripted assignment dimension mismatch. |
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xianpingwang
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