# double summation. for loop

6 views (last 30 days)
Saranika Das on 29 Jul 2020
Commented: Rik on 4 Aug 2020
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'));

Rik on 29 Jul 2020
Is there any particular reason you're using symbolic variables?
What is your end goal? Do you want to plot this function for a range of values of xp?
Saranika Das on 4 Aug 2020
Sir I am using symbolic variables to generalize the code. I need to find the values for xp and see its variation using a plot
Rik on 4 Aug 2020
If you need to find the values of xp, what values of F do you have?

R2013a

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