请问,如何用matlab如何实现数值积分?。
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对于,x=-5:0.1:5,y=-5:0.1:5;
r=sqrt(x.^2+y.^2);
求(exp(r.^2))./(r.^3)对r在0到r求积分,
若果换成(exp(x.^2+y.^2))./((sqrt(x.^2+y.^2)).^3)对x在0到x和y在0到y的范围求二重数值积分的话又应该怎么做怎么写程序呢?
最后要画的图是mesh或者surf图。
请教各位大神赐教!
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