[問題] 急..請問大家一下問題..已回收
請問大家一下..為啥一下的程式碼中Z矩陣的第47行值會為零..?
跪求各位大大幫我d bug一下..感激不盡...
clear all;
%------x is the revise data of the temperature-------
x=[20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 102 104 106 108 110 112 114 116];
x4=0.8784*x+3.1201;
%-----x5 is the absolute temperature K-------
x5=273+x4;
%------y is the average birefringence of the different temperature------
y=[0.221522873 0.222998931 0.21862764 0.217330012 0.212442676 0.211689586 0.206710927 0.204422076 0.198370832 0.196035742 0.190037877 0.185293917 0.178792928 0.172768442 0.163413562 0.156316301 0.143297336 0.137647913 0.131721686 0.124443935 0.115692785 0.104639389 0.091245292 0.070818045 0.02479401];
for beta=0.2:0.002:0.4;
for dn0=0.25:0.002:0.4;
n=1/beta;
y1=1-(x5/379.2);
dn1=(dn0)*(nthroot(y1,n));
y2=y-dn1;
y3=abs(y2);
y4=sum(y3);
yy=fix(500*dn0-124);
xx=fix(500*beta-99);
z(xx,yy)=y4;
end
end
--
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