积分求解下式用matlab求解时出现Explicit integral could not be found.

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积分求解下式用matlab求解时出现Explicit integral could not be found.
y=u^4*exp(-2.4831*u^2)/((u+0.5394*(2/(1+1.179*u)^3+3/(1+1.179*u)^2+3/(1+1.179*u))/8)^2*(1-u^2)^0.5)
int(y,0,1)

符号积分积不出来,用quad数值积分
>> y=@(u) u.^4.*exp(-2.4831*u.^2)./((u+0.5394*(2./(1+1.179*u).^3+3./(1+1.179*u).^2+3./(1+1.179*u))/8).^2.*(1-u.^2).^0.5);
I=quad(y,0,1)
I =
0.0899

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积分求解下式 用matlab求解时出现Explicit integral could not be found.

积分求解下式用matlab求解时出现Explicit integral could not be found.