how to subs element of strucs in a loop?

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Amirhosein Ghenaati
回答： Walter Roberson 2016-1-27
i want to write a program to solve indefinite eqs. answers are located in sol(struct) e.g sol.x1 mean x1 and etc cause number of variable is unknown and they are assigned to symbolic variable(z), I must substitude z with 1 my problem is define a for loop to write following code because I cant define sol.x(i) in a loop
sol=solve(EQ==0)
subs(sol.x1,z,1)
subs(sol.x2,z,1)d
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Stephen23
Stephen23 2016-1-27
编辑：Stephen23 2016-1-27
Amirhosein Ghenaati's "Answer" moved here:
how can i make a n*n matrix K which has symbolic class and contains all symbolic elements as k11 k12...k1n.I can't obtain K with a for loop
@Amirhosein Ghenaati: please use the comment fields for writing comments.

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采纳的回答

Walter Roberson
Walter Roberson 2016-1-27
K = sym('k', n, n)
varnames = fieldnames(sol);
numvars = length(varnames);
solz = struct();
for K = 1 : numvars
thisvar = varnames{K};
solz.(thisvar) = subs(sol.(thisvar), z, 1);
end

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