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Problem to solve this integral in matlab 
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#1
Sep1605, 11:59 AM

P: 1

hello , somebody could help me to solve in MATLAB this integral?
[tex]r(\alpha) =\frac{1}{\theta} \int_{0}^{\theta} \ e^{jk*2Rsin(\sigma/2)sin(\sigma/2+\alpha) } \,d\sigma[/tex] I have tried to solve it but it gives this error : Warning: Explicit integral could not be found. > In C:\MATLAB6p5\toolbox\symbolic\@sym\int.m at line 58 In C:\MATLAB6p5\work\directividadCurvado.m at line 12 ??? Error: Assignment statements do not produce results. (Use == to test for equality.) Error in ==> C:\MATLAB6p5\toolbox\symbolic\@sym\double.m On line 45 ==> D = reshape(eval(X),m,n); Error in ==> C:\MATLAB6p5\work\directividadCurvado.m On line 12 ==> ppp=double(int(exp(i*k*2*R*sin(x/2).*(sin(x/2)+t)),'x','0','ang')); please help me. Excuse me by my writing. Thanks. 


#2
Sep2005, 05:44 AM

Sci Advisor
HW Helper
P: 11,926

U can't solve it. Try Matlab with a simpler integral
[tex] \int e^{\sin x} \ dx [/tex] Daniel. 


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