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标题:
两个命令的区别具体是什么？
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作者:
tuoni
时间:
2020-6-16 15:11
标题:
两个命令的区别具体是什么？
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Bem=@(y,x,z)(1.18*10^5)*(b-x)/(sqrt((a-y)^2+(b-x)^2+(c-z)^2));这是积分方程，
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用q = integral3(Bem(y,x,z),-0.015,0.015,-0.015,-0.0065,0,0.01)可以进行运算；
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但是用q = triplequad(Bem(y,x,z),-0.015,0.015,-0.015,-0.0065,0,0.01)不能运行，
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显示错误：输入必须为单精度或双精度浮点值。请问两个命令的区别具体是什么？
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非常感谢！
作者:
leleeda
时间:
2020-6-16 15:54
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没什么不能用的啊
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a = -2; b = -5; c = -7;
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Bem=@(y,x,z) (1.18*10^5).*(b-x)./(sqrt((a-y).^2+(b-x).^2+(c-z).^2));
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q1 = integral3(Bem,-0.015,0.015,-0.015,-0.0065,0,0.01)
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q2 = triplequad(Bem,-0.015,0.015,-0.015,-0.0065,0,0.01)
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q1 =
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-0.170025473637909
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q2 =
2 b X3 S+ {& d. k3 \
-0.170025473637909
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