double summation. for loop

12 次查看（过去 30 天）

Saranika Das 2020-7-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/572080-double-summation-for-loop

评论： Rik 2020-8-4

N = 16;
h=1/N;
b=(2/(N*200))^0.5;
c=(250000*h/(N*200))^0.5;
L=1;
xt=7/N;
syms xp m n
Fi=-((h*(b^2)/(c^2))^2)*(cos((2*m-1)*pi*xt/(2*L))*cos((2*n-1)*pi*xt/(2*L)))*((sin((2*m-1)*pi*xp*h/(2*L))*sin((2*n-1)*pi*xp*h/(2*L)))+(sin((2*m-1)*pi*xp*h/(2*L))*sin((2*n-1)*pi*xp*h/(2*L))))/(((2*m-1)*pi/(2*L))*((2*n-1)*pi/(2*L)));
for xp = 1:N  
       for m=1:N-1
           for n=m+1:N
                      z(m) =subs(Bi);  
                      z1(n) =sum(subs((z))); 
                end         
         end
          B(xp)=subs(sum(z1));      
end
disp(double(B'));