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plz help me ....complex contour integral

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salah zetreni
salah zetreni 2015-3-12
评论： Shariefa Shaik 2017-11-1
I answers integral ∮e^2z/((1+z)^4 ) dz around|z|=2 ,I answer it by using cauchy integral.. how can I answer it by using matlab ?? plz help me , I need to your help ,thank you every one

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Torsten
Torsten 2015-3-12
fun=@(z)exp(2*z)/(1+z)^4;
g=@(theta)2*cos(theta)+1i*2*sin(theta);
gprime=@(theta)-2*sin(theta)+1i*2*cos(theta);
q1 = integral(@(t) fun(g(t)).*gprime(t),0,2*pi)
Best wishes
Torsten.
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Torsten
Torsten 2015-3-12
Yes, above I parametrized a circle of radius 2 around z=0 in g(theta) ...
Best wishes
Torsten.

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