Double integral with limits

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Ramkumar P
Ramkumar P 2020-10-1
评论： Ramkumar P 2020-10-1
Hey there everyone, I am having trouble solving a double integral using MATLAB.
The manual calculation is shown in the above figure. However, when i try to program it in MATLAB it is not displaying the correct ans as the given figure.
Th following code is displayed below.
f = @(x,y) exp(2*x).*(cos(y));
g1= @(x) sin(x);
q = integral2(f,0,pi,0,g1);
How do I troubleshoot this?

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回答（1 个）

madhan ravi
madhan ravi 2020-10-1
f = @(y, x) exp(2*x).*(cos(y)); % order of integration was wrong
g1= @(y) sin(y);
q = integral2(f,0,pi,0,g1)
% Using Symbolic Math Toolbox to verify
syms x y
q = int(int(exp(2*x).*(cos(y)), x, 0, sin(y)), y, 0, pi)

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