%定义第八曲面的相关数据。 =5?.'XMk  
C=22.334133;                                                               %透镜曲率 B X*69  
r=(-2.881923:0.001:2.881923);                                              %Semi-meter     33 :@*  
k=-1000;                                                                   %圆锥系数 ~q 7;8<U  
a1=0.26015;                                                               %2nd Order Term `"c'z;  
a2=-0.045105;                                                              %4nd Order Term 3
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a3=0.003017477;                                                            %6nd Order Term q6REh;$  
a4=-0.0001295027;                                                           %8nd Order Term *1$	  
z=C.*r.^2./(1+sqrt(1-(1+k)*C^2.*r.^2))+a1.*r.^2+a2.*r.^4+a3.*r.^6+a4.*r.^8; {rDq_^  
plot(z,r,'r'),grid on,axis WqE
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从你的公式来看,你的c应该取曲率,而不是半径,没有验证过,你可以试试。