struct to non struct error in integral calc

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fima v
fima v 2017-6-16
评论： fima v 2017-6-16
Hello , i am getting this error
"Struct contents reference from a non-struct array object."
its a simmpe formulas, why i am getting error?
Thanks
a = @(th)(((sin((x./2).*cos(th))./cos(th)).^2).*(besselj(0,(k.L.*sin(th)))).*(sin(th)).^3);
a1 = integral(a,0,pi);

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采纳的回答

Walter Roberson
Walter Roberson 2017-6-16
I suspect
k.L.*sin(th)
should be
k.*L.*sin(th)

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