clear;clc;
syms x;
a=(5.041^2-0.617^2)^(0.0451/2);
b=sqrt(2*pi)*5.041.^(0.0451-0.5)*0.0044^(0.0451);
c=besselk(0.0451,0.0044*sqrt(5.041.^2-0.617^2));
a1=(0.0044^2+(x+0.0004).^2).^(0.0451/2-0.25);
b1=besselk(0.0451-0.5,5.041*sqrt(0.0044^2+(x+0.0004).^2));
c1=exp(0.617*(x+0.0004));
y=a/(b*c)*a1.*b1.*c1;
jifen=int(y,x,0,100);
代码如上，为什么最后出现的提示是没有显示解，求大神帮忙