could any one help me to find wt is the error in this code????

xnetloc=[4 5 7 8]

ynetloc=[23 4 56 89];

syms x;

 syms y;

syms r; rt=[x y];

r=[xnetloc;ynetloc];

N=4;

noOfratios=6;

s=5;%assumption bs hek mbd2yan 3shan elqanoon

for i=1:N

for j=1:N

E(i)=(s/(abs((rt-r(i,j)).^2))); end end

for i = 1:noOfratios

j = setdiff(1:noOfratios,i);

    k(i,j)=E(i)/E(j);

end

for i = 1:noOfratios

j = setdiff(1:noOfratios,i);

c(i,j)=(r(i,2)-k(i,j)*r(j,2))/(1-k(i,j).^2);%centre coordinates

p(i,j)=k(i,j)*(abs(r(i,2)-r(j,2)))/(1-k(i,j).^2);

%radius coordinates

f=((x-c(i,1))^2)-((y-c(i,2))^2)-p(i)^2)

hold on

ezplot(f)

end

[Walter Roberson]

Please go in to the editor and select your code and click on the 'Code {}' button, so as to reformat the code to be readable.

Answer 1

[Sean de Wolski]

You have one too many parenthesis on this line:

 f=((x-c(i,1))^2)-((y-c(i,2))^2)-p(i)^2)

[SAM alimostafa]

the error in this line

c(i,j)=(r(i,2)-k(i,j)*r(j,2))/(1-k(i,j).^2)

it says because i used symbolic values division in this way is not allowed can you help me in this matter??

Answer 2

[Walter Roberson]

Your code

for i=1:N
  for j=1:N
    E(i)=(s/(abs((rt-r(i,j)).^2)));
  end
end

Would have the same effect as

j = N;
for i = 1:N
  E(i)=(s/(abs((rt-r(i,j)).^2)));
end

Are you sure that is what you intended?

[SAM alimostafa]

the error in division of symbolic variables i don't know how to solve it

E(i)=(s.*(1/(abs((rt-[xloc(i),yloc(i)]).^2))));