作业帮matlab计算四重积分问题,如何比较简单的计算四重积分呢?必有重谢>> x=14*sin(pi/8);>> y=15-14*cos(pi/8);>> syms s t m n;>> int(int(int(int('1./((((x-m).^2+y.^2+n.^2).^0.5).*(((s-m).^2+225+(t-n).^2).^1.5))',s,-0.15,0.15),t,-0.15,0
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matlab计算四重积分问题,如何比较简单的计算四重积分呢?必有重谢>> x=14*sin(pi/8);>> y=15-14*cos(pi/8);>> syms s t m n;>> int(int(int(int('1./((((x-m).^2+y.^2+n.^2).^0.5).*(((s-m).^2+225+(t-n).^2).^1.5))',s,-0.15,0.15),t,-0.15,0
matlab计算四重积分问题,如何比较简单的计算四重积分呢?必有重谢
>> x=14*sin(pi/8);
>> y=15-14*cos(pi/8);
>> syms s t m n;
>> int(int(int(int('1./((((x-m).^2+y.^2+n.^2).^0.5).*(((s-m).^2+225+(t-n).^2).^1.5))',s,-0.15,0.15),t,-0.15,0.15),n,-7,7),m,-9,9);
Error using ==> sym.sym>sym.sym/scalarsym at 382
Error:'expression' expected [line 1,col 3]
Error in ==> sym.sym>sym.sym/char2sym at 337
Scell = scalarsym(x);
Error in ==> sym.sym>sym.sym/symchar at 182
Scell = char2sym(x);
Error in ==> sym.sym>sym.sym at 120
S = cell2sym(S,symchar(x,a,nargin));
Error in ==> sym.int at 28
f = sym(f);
四重积分怎么求比较简单啊,不需要编程序最好
matlab计算四重积分问题,如何比较简单的计算四重积分呢?必有重谢>> x=14*sin(pi/8);>> y=15-14*cos(pi/8);>> syms s t m n;>> int(int(int(int('1./((((x-m).^2+y.^2+n.^2).^0.5).*(((s-m).^2+225+(t-n).^2).^1.5))',s,-0.15,0.15),t,-0.15,0
>> x=14*sin(pi/8);
y=15-14*cos(pi/8);
syms s t m n;
int(int(int(int(1./((((x-m).^2+y.^2+n.^2).^0.5).*(((s-m).^2+225+(t-n).^2).^1.5)),s,-0.15,0.15),t,-0.15,0.15),n,-7,7),m,-9,9);
Warning: Explicit integral could not be found.