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Question: Approximation Of Function

Question:Approximation Of Function

otherworld314 -2
plot integral series
June 19 2010
0

Thanks to everyone who helped me with the last question. Unfortunately its a double integral, so its even more complicated than I think the program can handle. I tried to approximate the function with mtalyor

 

l := sqrt(1+cos(x)*cos(y)*cos(x+y));

 

however when I plot this function as for example:

 

w = mtaylor(l, [x, y], 5)

 

this function gets worse and worse, it gets flatter, and flatter, why is this? does the series not converge? Is there another way I can approximate the function (l)?
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