用matlab做双重积分时,老是错误.G = @(x,y)(tan(x.^2+y.^2))/(1+x+y); I = dblquad(G,0,pi/2,0,pi/3);
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![用matlab做双重积分时,老是错误.G = @(x,y)(tan(x.^2+y.^2))/(1+x+y); I = dblquad(G,0,pi/2,0,pi/3);](/uploads/image/z/3772781-53-1.jpg?t=%E7%94%A8matlab%E5%81%9A%E5%8F%8C%E9%87%8D%E7%A7%AF%E5%88%86%E6%97%B6%2C%E8%80%81%E6%98%AF%E9%94%99%E8%AF%AF.G+%3D+%40%28x%2Cy%29%28tan%28x.%5E2%2By.%5E2%29%29%2F%281%2Bx%2By%29%3B+I+%3D+dblquad%28G%2C0%2Cpi%2F2%2C0%2Cpi%2F3%29%3B)
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用matlab做双重积分时,老是错误.G = @(x,y)(tan(x.^2+y.^2))/(1+x+y); I = dblquad(G,0,pi/2,0,pi/3);
用matlab做双重积分时,老是错误.G = @(x,y)(tan(x.^2+y.^2))/(1+x+y); I = dblquad(G,0,pi/2,0,pi/3);
用matlab做双重积分时,老是错误.G = @(x,y)(tan(x.^2+y.^2))/(1+x+y); I = dblquad(G,0,pi/2,0,pi/3);
G = @(x,y)(tan(x.^2+y.^2))./(1+x+y); I = quad2d(G,0,pi/2,0,pi/3)
Warning:Reached the maximum number of function evaluations (2000).The result fails
the global error test.
> In quad2d at 248
I =
0.3324
G = @(x,y)(tan(x.^2+y.^2))./(1+x+y); I = dblquad(G,0,pi/2,0,pi/3)