matlab程序出现Error in ==> fesin at 错误,求高手指导.在使用quad函数求积分时[s,n]=quad('fesin',-100000000000,10000000000)出现一下错误,（我的fesin是这样定义的.function funz=fesin(x)funz=691200.x./((1+9./0.7.x^2)^4./3

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matlab程序出现Errorin==>fesinat错误,求高手指导.在使用quad函数求积分时[s,n]=quad(''fesin'',-100000000000,10000000000)出现一下错误

matlab程序出现Error in ==> fesin at 错误,求高手指导.在使用quad函数求积分时[s,n]=quad('fesin',-100000000000,10000000000)出现一下错误,（我的fesin是这样定义的.function funz=fesin(x)funz=691200.*x./((1+9./0.7.*x^2)^4./3
matlab程序出现Error in ==> fesin at 错误,求高手指导.
在使用quad函数求积分时
[s,n]=quad('fesin',-100000000000,10000000000)出现一下错误,（我的fesin是这样定义的.
function funz=fesin(x)
funz=691200.*x./((1+9./0.7.*x^2)^4./3.*(1.4277^2+2*1.4277.*0.037-x^2))
）出现一下错误:
? Error using ==> mpower
Matrix must be square.
Error in ==> fesin at 2
funz=691200.*x/((1+9/0.7.*x^2)^4/3.*(1.4277^2+2.*1.4277.*0.037-x^2))
Error in ==> quad at 62
y = f(x, varargin{:});