solve (b + (zl2^2)*((b+1-zl2))/a)-zl2 for zl2 using fzero if pr= 1.01325/220.64; tr= 373/647.7; a= ((27/64)*pr)/(tr)^2; b= ((1/8)*pr)/tr; in matlab

To solve f(zl2) = 0 using fzero in MATLAB, where f(zl2) = b + ((zl2^2) * (b+1-zl2)) / a - zl2, we can define a function handle using an anonymous function and pass it to the fzero as follows:

main.m
% Given values 
pr = 1.01325/220.64;
tr = 373/647.7;
a = ((27/64)*pr)/(tr)^2;
b = ((1/8)*pr)/tr;

% Function definition
f = @(zl2) b + ((zl2^2)*(b+1-zl2))/a - zl2;

% Initial guess
zl2_guess = 0.5;

% Solve using fzero
zl2_sol = fzero(f, zl2_guess);
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Here, we define an anonymous function f using the given equation and parameter values. We then define an initial guess for zl2, which is passed to fzero along with the function handle f. The output of fzero is the value of zl2 that satisfies the equation f(zl2) = 0.

Note that fzero requires a good initial guess to converge to the correct solution. If the initial guess is poor, the function may not converge or may converge to a local minimum. In this case, it is recommended to try different initial guesses until a suitable solution is found.